Marquise|Natural|GIA

1.02ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2558115959

Certificate GIA 2558115959

Diamond specifications and retailer prices

From $3,007 USD
As of November 4, 2026
Save $3,537 USD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,544 USD 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 $3,007 to $6,544, a $3,537 spread on the same certified stone. MOH London lists it at $6,544. 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
Color
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: $6,544 USD|Low: $3,018 USD|High: $6,624 USD|Avg: $4,229 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$3,018 USD
Retailer 4$3,112 USD
Retailer 7$3,793 USD
Retailer 3$3,940 USD
Retailer 5$4,196 USD
Retailer 2$4,404 USD
Retailer 8$4,431 USD
MOH London$6,544 USD

46 data points across 8 retailers

14 retailers$3,007 USD to $6,544 USD

B+
Cheapest Retailer
-
$3,007 USD
B+
Retailer 2
-
$3,018 USD
View
B+
Retailer 3
-
$3,084 USD
View
B+
Retailer 4
-
$3,112 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,368 USD
View
B
Retailer 6
-
$3,793 USD
View
B
Retailer 7
-
$3,856 USD
View
B
Retailer 8
-
$3,856 USD
View
B+
Retailer 9
-
$3,940 USD
View
Retailer 10
-
$4,196 USD
View
Price last confirmed 33 days ago
B
Retailer 11
-
$4,404 USD
View
Retailer 12
-
$4,431 USD
View
Price last confirmed 14 days ago
B
Retailer 13
-
$4,601 USD
View
Most Expensive
B
MOH London
11EA10FE9 · Nov 2
$6,544 USD
£5,153 GBP
View
13 more retailers have this diamond
Prices start from $3,007 USDSave up to $3,537 USD

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
$3,007 USD