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Marquise|Natural|GIA

1.02ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2558115959

Certificate GIA 2558115959

Diamond specifications and retailer prices

From $3,841 SGD
As of November 4, 2026
Save $4,518 SGD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,359 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558115959. Listed at 14 retailers as of November 2, 2026, with prices from $3,841 to $8,359, a $4,518 spread on the same certified stone. MOH London lists it at $8,359. 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

1.02
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2558115959
Dimensions10.17 × 5.23 × 3.29 mm
L/W Ratio1.94
Top View
10.17 mm5.23 mm1.02 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2558115959
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.8%

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 4
Current: $8,359 SGD|Low: $3,855 SGD|High: $8,461 SGD|Avg: $5,403 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 6$3,855 SGD
Retailer 4$3,975 SGD
Retailer 7$4,845 SGD
Retailer 2$5,062 SGD
Retailer 5$5,360 SGD
Retailer 3$5,634 SGD
Retailer 8$5,660 SGD
MOH London$8,359 SGD

45 data points across 8 retailers

14 retailers$3,841 SGD to $8,359 SGD

B+
Cheapest Retailer
-
$3,841 SGD
B+
Retailer 2
-
$3,855 SGD
View
B+
Retailer 3
-
$3,939 SGD
View
B+
Retailer 4
-
$3,975 SGD
View
Final sale: no returns
B+
Retailer 5
-
$4,302 SGD
View
B
Retailer 6
-
$4,845 SGD
View
B
Retailer 7
-
$4,925 SGD
View
B
Retailer 8
-
$4,925 SGD
View
B+
Retailer 9
-
$5,062 SGD
View
Retailer 10
-
$5,360 SGD
View
Price last confirmed 32 days ago
B
Retailer 11
-
$5,634 SGD
View
Retailer 12
-
$5,660 SGD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$5,877 SGD
View
Most Expensive
B
MOH London
11EA10FE9 · Nov 2
$8,359 SGD
£5,153 GBP
View
13 more retailers have this diamond
Prices start from $3,841 SGDSave up to $4,518 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+
1.02ct Marquise
$3,841 SGD