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Marquise|Natural|GIA

1.02ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 2557562150

Certificate GIA 2557562150

Diamond specifications and retailer prices

From £2,166 GBP
$2,907 USD
As of October 26, 2026
Save £2,829 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,996 GBP at NZ Jewellers · As of October 27, 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 G 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 2557562150. Listed at 16 retailers as of October 26, 2026, with prices from £2,166 to £4,996, a £2,829 spread on the same certified stone. NZ Jewellers lists it at £4,996. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557562150
Dimensions10.16 × 5.20 × 3.29 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
10.16 mm5.20 mm1.02 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557562150
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.4%

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: Oct 26
Current: £4,996 GBP|Low: £2,166 GBP|High: £4,996 GBP|Avg: £3,057 GBP|+1.0%
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
November 2, 2026
Retailer 17£2,166 GBP
Retailer 6£2,211 GBP
Retailer 16£2,269 GBP
Retailer 11£2,598 GBP
Retailer 8£2,619 GBP
Retailer 5£2,623 GBP
Retailer 15£2,672 GBP
Retailer 7£2,675 GBP
Retailer 2£2,797 GBP
Retailer 4£2,807 GBP
Retailer 9£2,903 GBP
Retailer 14£2,998 GBP
Retailer 3£3,275 GBP
Retailer 10£3,357 GBP
Retailer 13£3,525 GBP
Retailer 12£4,795 GBP
NZ Jewellers£4,996 GBP

41 data points across 17 retailers

16 retailers£2,166 GBP to £4,996 GBP

A
Cheapest Retailer
-
£2,166 GBP
$2,907 USD
A
Retailer 2
-
£2,211 GBP
$2,967 USD
View
Retailer 3
-
£2,269 GBP
$3,045 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£2,598 GBP
$3,486 USD
View
Retailer 5
-
£2,623 GBP
$3,520 USD
View
Price last confirmed 14 days ago
Retailer 6
-
£2,672 GBP
$3,586 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£2,675 GBP
$3,590 USD
View
B+
Retailer 8
-
£2,797 GBP
View
Retailer 9
-
£2,807 GBP
$3,767 USD
View
Price last confirmed 16 days ago
Retailer 10
-
£2,969 GBP
$3,984 USD
View
Price last confirmed 34 days ago
B+
Retailer 11
-
£2,998 GBP
$4,023 USD
View
Retailer 12
-
£3,275 GBP
View
Price last confirmed 12 days ago
B+
Retailer 13
-
£3,357 GBP
€4,290 EUR
View
B
Retailer 14
-
£3,525 GBP
ZAR 76,416 ZAR
View
B
Retailer 15
-
£4,795 GBP
View
Most Expensive
B
NZ Jewellers
762079a2-cea2-4488-99f0-8079d3425240 · Oct 27
£4,996 GBP
$6,704 USD
View
15 more retailers have this diamond
Prices start from £2,166 GBPSave up to £2,829 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
£2,166 GBP