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Marquise|Natural|GIA

1.02ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 6551158960

Certificate GIA 6551158960

Diamond specifications and retailer prices

From £1,691 GBP
HK$17,700 HKD
As of November 1, 2026
Save £2,075 GBP (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,766 GBP at MOH London · As of November 1, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551158960. Listed at 10 retailers as of November 1, 2026, with prices from £1,691 to £3,766, a £2,075 spread on the same certified stone. MOH London lists it at £3,766. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551158960
Dimensions10.48 × 5.29 × 3.15 mm
L/W Ratio1.98
Top View
10.48 mm5.29 mm1.02 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551158960
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,766 GBP|Low: £1,681 GBP|High: £3,811 GBP|Avg: £2,351 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5£1,691 GBP
Retailer 2£1,757 GBP
Retailer 7£1,855 GBP
Retailer 6£1,978 GBP
Retailer 4£2,411 GBP
Retailer 8£2,442 GBP
Retailer 3£2,635 GBP
MOH London£3,766 GBP

40 data points across 8 retailers

10 retailers£1,691 GBP to £3,766 GBP

A
Cheapest Retailer
-
£1,691 GBP
HK$17,700 HKD
A
Retailer 2
-
£1,757 GBP
₹224,227 INR
View
A
Retailer 3
-
£1,855 GBP
$2,486 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,978 GBP
$2,650 USD
View
B+
Retailer 5
-
£2,165 GBP
$2,901 USD
View
B+
Retailer 6
-
£2,357 GBP
SGD 4,267 SGD
View
B+
Retailer 7
-
£2,411 GBP
View
B
Retailer 8
-
£2,442 GBP
$3,272 USD
View
B
Retailer 9
-
£2,635 GBP
€3,363 EUR
View
Most Expensive
B
MOH London
F83101D0C · Nov 1
£3,766 GBP
View
9 more retailers have this diamond
Prices start from £1,691 GBPSave up to £2,075 GBP

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.

A
1.02ct Marquise
£1,691 GBP