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Marquise|Natural|GIA

1.02ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 7558660389

Certificate GIA 7558660389

Diamond specifications and retailer prices

From £1,659 GBP
As of November 4, 2026
Save £2,054 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,042 GBP at NZ Jewellers · As of September 28, 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 H 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 7558660389. Listed at 17 retailers as of November 4, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.4°
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 7558660389
Dimensions10.33 × 5.26 × 3.24 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizeNone
Top View
10.33 mm5.26 mm1.02 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558660389
Side View
Table 63.0%Crown 33.4°Girdle: THN-THKPavilion 38.2°Culet: NoneDepth 61.7%

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 4
Current: £2,436 GBP|Low: £1,659 GBP|High: £3,927 GBP|Avg: £2,310 GBP|-2.2%
Retailer 1
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
November 6, 2026
Retailer 4£1,659 GBP
Retailer 2£1,692 GBP
Retailer 15£1,806 GBP
Retailer 5£1,862 GBP
Retailer 14£1,898 GBP
Retailer 7£2,102 GBP
Retailer 13£2,174 GBP
Retailer 3£2,301 GBP
Retailer 10£2,301 GBP
Retailer 8£2,356 GBP
Retailer 11£2,376 GBP
Retailer 1£2,436 GBP
Retailer 6£2,595 GBP
Retailer 12£2,727 GBP
Retailer 9£3,712 GBP

31 data points across 15 retailers

17 retailers£1,659 GBP to £3,712 GBP

A
Cheapest Retailer
-
£1,659 GBP
A
Retailer 2
-
£1,692 GBP
View
A
Retailer 3
-
£1,806 GBP
View
A
Retailer 4
-
£1,862 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,898 GBP
View
Retailer 6
-
£2,102 GBP
View
Price last confirmed 39 days ago
B+
Retailer 7
-
£2,174 GBP
View
B+
Retailer 8
-
£2,301 GBP
View
B+
Retailer 9
-
£2,301 GBP
View
B+
Retailer 10
-
£2,356 GBP
View
B+
Retailer 11
-
£2,376 GBP
View
Retailer 12
-
£2,425 GBP
View
Price last confirmed 38 days ago
B+
Retailer 13
-
£2,436 GBP
View
Retailer 14
-
£2,595 GBP
View
Price last confirmed 14 days ago
B+
Retailer 15
-
£2,727 GBP
View
B
Retailer 16
-
£3,712 GBP
View
Most Expensive
NZ Jewellers
d4ec7c9a-3ddd-4a3c-a459-f20beac925d0 · Sep 28
£4,042 GBP
$5,410 USD
View
Price last confirmed 39 days ago
16 more retailers have this diamond
Prices start from £1,659 GBPSave up to £2,054 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
£1,659 GBP