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Round|Natural|GIA

2.66ct H SI1 Round Natural Diamond

EX • H/SI1

Diamond specifications and retailer prices

From $26,193 SGD
$20,481 USD
As of November 2, 2026
Save $15,551 SGD (37%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $41,745 SGD 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 $26,193 to $41,745, a $15,551 spread on the same certified stone. NZ Jewellers lists it at $41,745. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $41,745 SGD|Low: $25,935 SGD|High: $41,745 SGD|Avg: $31,871 SGD
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$26,193 SGD
Retailer 3$28,540 SGD
Retailer 4$29,467 SGD
Retailer 8$30,655 SGD
Retailer 5$30,940 SGD
Retailer 6$31,923 SGD
Retailer 10$32,951 SGD
Retailer 2$32,966 SGD
Retailer 7$33,150 SGD
Retailer 11$35,392 SGD
NZ Jewellers$41,745 SGD

30 data points across 11 retailers

13 retailers$26,193 SGD to $41,745 SGD

B+
Cheapest Retailer
-
$26,193 SGD
$20,481 USD
B+
Retailer 2
-
$28,540 SGD
CA$30,995 CAD
View
B+
Retailer 3
-
$29,467 SGD
$23,041 USD
View
B+
Retailer 4
-
$30,655 SGD
$23,970 USD
View
B+
Retailer 5
-
$30,940 SGD
$24,193 USD
View
B
Retailer 6
-
$31,923 SGD
$24,961 USD
View
B
Retailer 7
-
$32,951 SGD
$25,765 USD
View
B
Retailer 8
-
$32,966 SGD
£20,297 GBP
View
B
Retailer 9
-
$33,150 SGD
$25,921 USD
View
Retailer 10
-
$34,286 SGD
$26,809 USD
View
Price last confirmed 53 days ago
B
Retailer 11
-
$35,392 SGD
$27,674 USD
View
Retailer 12
-
$35,605 SGD
$27,840 USD
View
Price last confirmed 58 days ago
Most Expensive
B
NZ Jewellers
bd60fdf9-aff0-4589-916b-e9535713f85c · Nov 2
$41,745 SGD
$32,641 USD
View
12 more retailers have this diamond
Prices start from $26,193 SGDSave up to $15,551 SGD

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
$26,193 SGD