Round|Natural|GIA

2.66ct H SI1 Round Natural Diamond

EX • H/SI1

Diamond specifications and retailer prices

From €18,260 EUR
$20,481 USD
As of November 2, 2026
Save €10,842 EUR (37%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €29,102 EUR at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 2.66ct natural round diamond

This 2.66ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 13 retailers as of November 2, 2026, with prices from €18,260 to €29,102, a €10,842 spread on the same certified stone. NZ Jewellers lists it at €29,102. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.66
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.01 × 9.07 × 5.41 mm
L/W Ratio1.01
Top View
9.01 mm9.07 mm2.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 59.0%CrownGirdle: ThinPavilionCulet: NoneDepth 59.8%

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: €29,102 EUR|Low: €18,080 EUR|High: €29,102 EUR|Avg: €22,219 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9€18,260 EUR
Retailer 3€19,897 EUR
Retailer 4€20,543 EUR
Retailer 8€21,371 EUR
Retailer 5€21,570 EUR
Retailer 6€22,255 EUR
Retailer 10€22,972 EUR
Retailer 2€22,982 EUR
Retailer 7€23,111 EUR
Retailer 11€24,674 EUR
NZ Jewellers€29,102 EUR

30 data points across 11 retailers

13 retailers€18,260 EUR to €29,102 EUR

B+
Cheapest Retailer
-
€18,260 EUR
$20,481 USD
B+
Retailer 2
-
€19,897 EUR
CA$30,995 CAD
View
B+
Retailer 3
-
€20,543 EUR
$23,041 USD
View
B+
Retailer 4
-
€21,371 EUR
$23,970 USD
View
B+
Retailer 5
-
€21,570 EUR
$24,193 USD
View
B
Retailer 6
-
€22,255 EUR
$24,961 USD
View
B
Retailer 7
-
€22,972 EUR
$25,765 USD
View
B
Retailer 8
-
€22,982 EUR
£20,297 GBP
View
B
Retailer 9
-
€23,111 EUR
$25,921 USD
View
Retailer 10
-
€23,902 EUR
$26,809 USD
View
Price last confirmed 52 days ago
B
Retailer 11
-
€24,674 EUR
$27,674 USD
View
Retailer 12
-
€24,822 EUR
$27,840 USD
View
Price last confirmed 57 days ago
Most Expensive
B
NZ Jewellers
bd60fdf9-aff0-4589-916b-e9535713f85c · Nov 2
€29,102 EUR
$32,641 USD
View
12 more retailers have this diamond
Prices start from €18,260 EURSave up to €10,842 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+
2.66ct Round
€18,260 EUR