Round|Natural|GIA

1.66ct D VS2 Round Natural Diamond

EX • D/VS2 • GIA 1165082781

Certificate GIA 1165082781

Diamond specifications and retailer prices

From $20,180 USD
As of November 1, 2026
Save $19,465 USD (49%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $39,645 USD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.66ct natural round diamond

This 1.66ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1165082781. Listed at 22 retailers as of October 29, 2026, with prices from $20,180 to $39,645, a $19,465 spread on the same certified stone. Diamond Quarter lists it at $39,645. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1165082781
Dimensions7.66 × 7.61 × 4.61 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.66 mm7.61 mm1.66 ctD / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1165082781
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $23,288 USD|Low: $19,406 USD|High: $36,807 USD|Avg: $26,729 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5$20,180 USD
Retailer 6$22,317 USD
Retailer 1$23,288 USD
Retailer 7$23,854 USD
Retailer 8$24,451 USD
Retailer 3$27,156 USD
Retailer 4$34,213 USD
Retailer 2$36,369 USD

43 data points across 8 retailers

22 retailers$20,180 USD to $39,645 USD

B+
Cheapest Retailer
-
$20,180 USD
B+
Retailer 2
-
$21,383 USD
View
B+
Retailer 3
-
$21,408 USD
View
B+
Retailer 4
-
$21,906 USD
CA$30,425 CAD
View
B
Retailer 5
-
$22,317 USD
View
Final sale: no returns
B
Retailer 6
-
$22,695 USD
View
B
Retailer 7
-
$23,287 USD
View
B+
Retailer 8
-
$23,288 USD
£18,337 GBP
View
Retailer 9
-
$23,854 USD
A$36,698 AUD
View
Price last confirmed 29 days ago
B
Retailer 10
-
$24,451 USD
View
B
Retailer 11
-
$24,950 USD
View
B
Retailer 12
-
$24,950 USD
View
B
Retailer 13
-
$25,228 USD
View
B
Retailer 14
-
$25,780 USD
View
Retailer 15
-
$26,159 USD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$26,198 USD
View
B
Retailer 17
-
$27,156 USD
€25,863 EUR
View
B
Retailer 18
-
$27,165 USD
View
B
Retailer 19
-
$32,990 USD
View
B
Retailer 20
-
$34,213 USD
ZAR 552,714 ZAR
View
B
Retailer 21
-
$36,369 USD
£28,637 GBP
View
Most Expensive
B
Diamond Quarter
1.66VS2D11813139N · Oct 29
$39,645 USD
£31,216 GBP
View
21 more retailers have this diamond
Prices start from $20,180 USDSave up to $19,465 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.66ct Round
$20,180 USD