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Marquise|Natural|GIA

1.02ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 7556199625

Certificate GIA 7556199625

Diamond specifications and retailer prices

From £2,487 GBP
As of November 6, 2026
Save £240 GBP (9%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,727 GBP at Jared · As of November 6, 2026
View at Jared

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 7556199625. Listed at 5 retailers as of November 6, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Crown angle39.51°
Pavilion angle41.76°
OriginNatural
Grading LabGIA
CertificateGIA 7556199625
Dimensions10.14 × 5.33 × 3.40 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.14 mm5.33 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556199625
Side View
Table 61.0%Crown 39.51°Girdle: STK-THKPavilion 41.76°Culet: NoneDepth 63.8%

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 6
Current: £2,727 GBP|Low: £1,263 GBP|High: £3,068 GBP|Avg: £2,328 GBP
Jared
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
November 6, 2026
Retailer 6£1,263 GBP
Retailer 5£1,863 GBP
Retailer 3£1,883 GBP
Retailer 15£2,025 GBP
Retailer 8£2,064 GBP
Retailer 10£2,173 GBP
Retailer 7£2,312 GBP
Retailer 14£2,383 GBP
Retailer 2£2,487 GBP
Retailer 9£2,497 GBP
Retailer 13£2,519 GBP
Retailer 11£2,637 GBP
Retailer 12£2,637 GBP
Jared£2,727 GBP
Retailer 16£2,752 GBP
Retailer 4£3,068 GBP

30 data points across 16 retailers

5 retailers£2,487 GBP to £2,727 GBP

B+
Cheapest Retailer
-
£2,487 GBP
B
Retailer 2
-
£2,497 GBP
View
B
Retailer 3
-
£2,637 GBP
View
B
Retailer 4
-
£2,637 GBP
View
Most Expensive
B
Jared
159370334 · Nov 6
£2,727 GBP
$3,650 USD
View
4 more retailers have this diamond
Prices start from £2,487 GBPSave up to £240 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
£2,487 GBP