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Marquise|Natural|GIA

1.02ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 7548866712

Certificate GIA 7548866712

Diamond specifications and retailer prices

From £1,945 GBP
As of November 4, 2026
Save £2,023 GBP (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,969 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

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 7548866712. Listed at 19 retailers as of November 3, 2026, with prices from £1,945 to £3,969, a £2,023 spread on the same certified stone. NZ Jewellers lists it at £3,969. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548866712
Dimensions10.23 × 5.14 × 3.27 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Pinpoint
Top View
10.23 mm5.14 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7548866712
Side View
Table 57.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.6%

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 4
Current: £3,969 GBP|Low: £1,945 GBP|High: £4,090 GBP|Avg: £2,565 GBP|-0.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 8£1,945 GBP
Retailer 13£2,040 GBP
Retailer 7£2,102 GBP
Retailer 10£2,145 GBP
Retailer 15£2,217 GBP
Retailer 18£2,219 GBP
Retailer 16£2,278 GBP
Retailer 9£2,348 GBP
Retailer 3£2,365 GBP
Retailer 2£2,368 GBP
Retailer 5£2,385 GBP
Retailer 12£2,412 GBP
Retailer 17£2,566 GBP
Retailer 4£2,628 GBP
Retailer 6£2,666 GBP
Retailer 11£2,780 GBP
Retailer 14£3,799 GBP
NZ Jewellers£3,969 GBP

25 data points across 18 retailers

19 retailers£1,945 GBP to £3,969 GBP

B+
Cheapest Retailer
-
£1,945 GBP
B+
Retailer 2
-
£2,040 GBP
View
B
Retailer 3
-
£2,102 GBP
View
Final sale: no returns
B+
Retailer 4
-
£2,145 GBP
View
B+
Retailer 5
-
£2,217 GBP
View
B+
Retailer 6
-
£2,219 GBP
View
B+
Retailer 7
-
£2,278 GBP
View
Retailer 8
-
£2,348 GBP
View
Price last confirmed 9 days ago
B
Retailer 9
-
£2,365 GBP
View
B
Retailer 10
-
£2,368 GBP
View
B
Retailer 11
-
£2,385 GBP
View
B
Retailer 12
-
£2,412 GBP
View
Retailer 13
-
£2,473 GBP
View
Price last confirmed 31 days ago
B
Retailer 14
-
£2,566 GBP
View
B
Retailer 15
-
£2,628 GBP
View
B
Retailer 16
-
£2,666 GBP
View
B
Retailer 17
-
£2,780 GBP
View
B
Retailer 18
-
£3,799 GBP
View
Most Expensive
B
NZ Jewellers
ad53522a-8fb1-44e2-8927-8deb30d63fb7 · Nov 3
£3,969 GBP
$5,312 USD
View
18 more retailers have this diamond
Prices start from £1,945 GBPSave up to £2,023 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
£1,945 GBP