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Marquise|Natural|GIA

1.02ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 1543346382

Certificate GIA 1543346382

Diamond specifications and retailer prices

From £1,782 GBP
As of November 6, 2026
Save £917 GBP (34%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,699 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 1543346382. Listed at 9 retailers as of November 6, 2026, with prices from £1,782 to £2,699, a £917 spread on the same certified stone. 77 Diamonds lists it at £2,699. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543346382
Dimensions10.58 × 5.35 × 3.06 mm
L/W Ratio1.98
Top View
10.58 mm5.35 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543346382
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.1%

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 6
Current: £2,699 GBP|Low: £1,635 GBP|High: £2,747 GBP|Avg: £2,154 GBP|+0.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£1,782 GBP
Retailer 3£1,798 GBP
Retailer 2£1,808 GBP
Retailer 8£1,939 GBP
Retailer 4£2,225 GBP
Retailer 6£2,346 GBP
Retailer 7£2,346 GBP
Retailer 9£2,421 GBP
77 Diamonds£2,699 GBP

38 data points across 9 retailers

9 retailers£1,782 GBP to £2,699 GBP

B+
Cheapest Retailer
-
£1,782 GBP
B+
Retailer 2
-
£1,798 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,808 GBP
View
B+
Retailer 4
-
£1,939 GBP
View
B
Retailer 5
-
£2,225 GBP
View
B
Retailer 6
-
£2,346 GBP
View
B
Retailer 7
-
£2,346 GBP
View
B
Retailer 8
-
£2,421 GBP
View
Most Expensive
B
77 Diamonds
MQMBBU2WWRVF · Nov 6
£2,699 GBP
View
8 more retailers have this diamond
Prices start from £1,782 GBPSave up to £917 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.

B+
1.02ct Marquise
£1,782 GBP