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Round|Natural|GIA

1.66ct D VS2 Round Natural Diamond

ID • D/VS2 • GIA 3

Certificate GIA 3

Diamond specifications and retailer prices

From $28,791 AUD
$20,177 USD
As of November 2, 2026
Save $5,740 AUD (17%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $37,382 AUD at Aurelinne · As of September 7, 2026
View at Aurelinne

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. Listed at 5 retailers as of October 31, 2026, with a relatively tight 20% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3
Dimensions7.61 × 7.66 × 4.61 mm
L/W Ratio1.01
Top View
7.61 mm7.66 mm1.66 ctD / VS2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $37,382 AUD|Low: $28,491 AUD|High: $37,382 AUD|Avg: $32,866 AUD
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 23, 2026
Retailer 2$28,791 AUD
Retailer 6$30,796 AUD
Retailer 4$33,228 AUD
Retailer 5$34,531 AUD
Retailer 3$35,998 AUD
Aurelinne$37,382 AUD

5 data points across 6 retailers

5 retailers$28,791 AUD to $34,531 AUD

B+
Cheapest Retailer
-
$28,791 AUD
$20,177 USD
B+
Retailer 2
-
$30,796 AUD
$21,582 USD
View
B
Retailer 3
-
$34,531 AUD
$24,200 USD
View
Retailer 4
-
$35,998 AUD
$25,228 USD
View
Price last confirmed 56 days ago
Most Expensive
Aurelinne
7119c6c7-832c-42cf-bf30-cfa558ae31e7 · Sep 7
$37,382 AUD
$26,198 USD
View
Price last confirmed 56 days ago
4 more retailers have this diamond
Prices start from $28,791 AUDSave up to $5,740 AUD

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
$28,791 AUD