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Marquise|Natural|GIA

1.02ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 7431670394

Certificate GIA 7431670394

Diamond specifications and retailer prices

From $2,055 USD
As of November 1, 2026
Save $1,816 USD (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,871 USD at MOH London · As of November 4, 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 J 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 7431670394. Listed at 7 retailers as of November 1, 2026, with prices from $2,055 to $3,871, a $1,816 spread on the same certified stone. MOH London lists it at $3,871. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7431670394
Dimensions9.81 × 5.33 × 3.34 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Knot, Cavity, Needle, Natural
Top View
9.81 mm5.33 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7431670394
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.6%

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 1
Current: $3,871 USD|Low: $2,055 USD|High: $4,094 USD|Avg: $2,700 USD|-5.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 5$2,055 USD
Retailer 4$2,101 USD
Retailer 2$2,406 USD
Retailer 6$2,589 USD
Retailer 3$2,755 USD
Retailer 7$2,842 USD
MOH London$3,871 USD

30 data points across 7 retailers

7 retailers$2,055 USD to $3,871 USD

B+
Cheapest Retailer
-
$2,055 USD
B+
Retailer 2
-
$2,101 USD
View
B+
Retailer 3
-
$2,406 USD
View
B
Retailer 4
-
$2,589 USD
View
B
Retailer 5
-
$2,755 USD
View
Retailer 6
-
$2,842 USD
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
7C57422B3 · Nov 4
$3,871 USD
£3,048 GBP
View
6 more retailers have this diamond
Prices start from $2,055 USDSave up to $1,816 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
$2,055 USD