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Marquise|Natural|GIA

1.02ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2557725957

Certificate GIA 2557725957

Diamond specifications and retailer prices

From £1,938 GBP
$2,601 USD
As of November 1, 2026
Save £2,016 GBP (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,955 GBP at NZ Jewellers · As of October 30, 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 I 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 2557725957. Listed at 13 retailers as of October 30, 2026, with prices from £1,938 to £3,955, a £2,016 spread on the same certified stone. NZ Jewellers lists it at £3,955. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557725957
Dimensions12.31 × 4.57 × 2.92 mm
L/W Ratio2.69
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Pinpoint
Top View
12.31 mm4.57 mm1.02 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557725957
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.8%

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 1
Current: £3,955 GBP|Low: £1,938 GBP|High: £3,955 GBP|Avg: £2,659 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£1,938 GBP
Retailer 6£2,033 GBP
Retailer 2£2,244 GBP
Retailer 9£2,270 GBP
Retailer 10£2,270 GBP
Retailer 8£2,357 GBP
Retailer 4£2,407 GBP
Retailer 3£2,656 GBP
Retailer 5£3,817 GBP
NZ Jewellers£3,955 GBP

42 data points across 10 retailers

13 retailers£1,938 GBP to £3,955 GBP

B+
Cheapest Retailer
-
£1,938 GBP
$2,601 USD
B+
Retailer 2
-
£2,033 GBP
$2,728 USD
View
B+
Retailer 3
-
£2,244 GBP
View
B+
Retailer 4
-
£2,270 GBP
$3,046 USD
View
B+
Retailer 5
-
£2,270 GBP
$3,046 USD
View
B+
Retailer 6
-
£2,353 GBP
SGD 4,267 SGD
View
B+
Retailer 7
-
£2,357 GBP
$3,163 USD
View
B+
Retailer 8
-
£2,376 GBP
$3,189 USD
View
B+
Retailer 9
-
£2,407 GBP
View
B
Retailer 10
-
£2,619 GBP
$3,515 USD
View
B
Retailer 11
-
£2,656 GBP
€3,395 EUR
View
B
Retailer 12
-
£3,817 GBP
View
Most Expensive
B
NZ Jewellers
cb1bb62b-f380-48ba-af2d-6855c1611029 · Oct 30
£3,955 GBP
$5,307 USD
View
12 more retailers have this diamond
Prices start from £1,938 GBPSave up to £2,016 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
£1,938 GBP