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Marquise|Natural|GIA

1.02ct M SI1 Marquise Natural Diamond

ID • M/SI1 • GIA 2557647645

Certificate GIA 2557647645

Diamond specifications and retailer prices

From £1,057 GBP
As of November 4, 2026
Save £2,014 GBP (66%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,070 GBP at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557647645. Listed at 10 retailers as of November 4, 2026, with prices from £1,057 to £3,070, a £2,014 spread on the same certified stone. NZ Jewellers lists it at £3,070. 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
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557647645
Dimensions9.31 × 5.19 × 3.38 mm
L/W Ratio1.79
Top View
9.31 mm5.19 mm1.02 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557647645
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.1%

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: £3,070 GBP|Low: £970 GBP|High: £3,070 GBP|Avg: £1,345 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£970 GBP
Retailer 7£1,057 GBP
Retailer 11£1,140 GBP
Retailer 8£1,192 GBP
Retailer 10£1,198 GBP
Retailer 6£1,204 GBP
Retailer 2£1,237 GBP
Retailer 9£1,316 GBP
Retailer 5£1,536 GBP
Retailer 4£1,709 GBP
NZ Jewellers£3,070 GBP

16 data points across 11 retailers

10 retailers£1,057 GBP to £3,070 GBP

A
Cheapest Retailer
-
£1,057 GBP
B+
Retailer 2
-
£1,140 GBP
View
B+
Retailer 3
-
£1,192 GBP
View
B+
Retailer 4
-
£1,198 GBP
View
B+
Retailer 5
-
£1,204 GBP
View
B+
Retailer 6
-
£1,237 GBP
View
B+
Retailer 7
-
£1,316 GBP
View
B
Retailer 8
-
£1,536 GBP
View
B
Retailer 9
-
£1,709 GBP
View
Most Expensive
C
NZ Jewellers
65473d1a-3815-4143-9e68-e39ad899e7f7 · Nov 5
£3,070 GBP
$4,132 USD
View
9 more retailers have this diamond
Prices start from £1,057 GBPSave up to £2,014 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
£1,057 GBP