Reddit mentions of Adrianna Papell Women's Sleeveless V-Neck Beaded Top Gown, Ivory/Nude, 2

The closest dupe I'm aware of is this dress on Etsy for $1595. You will find used versions of the authentic dress on preowned and stillwhite.

Essense of Australia has dresses (D2177,
D2430 & D2378) in their collection that you might like.

BHLDN:

• Jones dress for $198 is a lot like it, though you'd have to alter the back a bit to make it lower.
  
• Octavia gown, $975
  
• Kameron gown, $1100
  
• Opaline gown, $1450
  
  
  Chi Chi London
  
  
• Ilaria dress, £65 = $91
  
• Carrie dress, £68 = $95
  
• Hilma dress, £68 = $95 (you'd have to remove the off shoulder sleeves)
  
  Lulu's
  
  
• Love potion, $86, and Celena dress, $119, (already pointed out by /u/coolcatlady6)
  
• Luella dress, $37
  
• Way to your heart dress, $90, - this one has a different neckline
  
• Adella dress, $94
  
• Cherish you dress, $96
  
• Ingram dress, $100, almost the same cut, different material (chiffon)
  
  
  Amazon has this Adrianna Papell dress
  
  
  David's Bridal:
  
  
• #F19279, $69 (+ you would have to add straps)
  
• Vera Wang 360317, $89
  
• Vera Wang 360345, $169, in ivory
  
• Vera Wang 360195, $169, in ivory