Round|Natural|GIA

1.66ct D VS2 Round Natural Diamond

ID • D/VS2 • GIA 3

Certificate GIA 3

Diamond specifications and retailer prices

From €17,989 EUR
$20,177 USD
As of November 2, 2026
Save €3,587 EUR (17%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €23,358 EUR 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €23,358 EUR|Low: €17,802 EUR|High: €23,358 EUR|Avg: €20,536 EUR
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 23, 2026
Retailer 2€17,989 EUR
Retailer 6€19,242 EUR
Retailer 4€20,762 EUR
Retailer 5€21,576 EUR
Retailer 3€22,493 EUR
Aurelinne€23,358 EUR

5 data points across 6 retailers

5 retailers€17,989 EUR to €21,576 EUR

B+
Cheapest Retailer
-
€17,989 EUR
$20,177 USD
B+
Retailer 2
-
€19,242 EUR
$21,582 USD
View
B
Retailer 3
-
€21,576 EUR
$24,200 USD
View
Retailer 4
-
€22,493 EUR
$25,228 USD
View
Price last confirmed 56 days ago
Most Expensive
Aurelinne
7119c6c7-832c-42cf-bf30-cfa558ae31e7 · Sep 7
€23,358 EUR
$26,198 USD
View
Price last confirmed 56 days ago
4 more retailers have this diamond
Prices start from €17,989 EURSave up to €3,587 EUR

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
€17,989 EUR