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Marquise|Natural|GIA

1.03ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2554426093

Certificate GIA 2554426093

Diamond specifications and retailer prices

From £1,448 GBP
As of November 5, 2026
Save £1,904 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,352 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded I 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 2554426093. Listed at 13 retailers as of November 5, 2026, with prices from £1,448 to £3,352, a £1,904 spread on the same certified stone. NZ Jewellers lists it at £3,352. 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

1.03
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554426093
Dimensions9.70 × 5.38 × 3.38 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
9.70 mm5.38 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554426093
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.8%

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 5
Current: £3,352 GBP|Low: £1,448 GBP|High: £3,508 GBP|Avg: £1,919 GBP|-4.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11£1,448 GBP
Retailer 2£1,555 GBP
Retailer 3£1,594 GBP
Retailer 12£1,603 GBP
Retailer 8£1,617 GBP
Retailer 4£1,622 GBP
Retailer 9£1,677 GBP
Retailer 5£1,733 GBP
Retailer 6£1,742 GBP
Retailer 10£1,850 GBP
Retailer 7£2,802 GBP
NZ Jewellers£3,352 GBP

31 data points across 12 retailers

13 retailers£1,448 GBP to £3,352 GBP

A
Cheapest Retailer
-
£1,448 GBP
A
Retailer 2
-
£1,555 GBP
View
A
Retailer 3
-
£1,594 GBP
View
A
Retailer 4
-
£1,603 GBP
View
A
Retailer 5
-
£1,617 GBP
View
Retailer 6
-
£1,622 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,677 GBP
View
A
Retailer 8
-
£1,733 GBP
View
A
Retailer 9
-
£1,742 GBP
View
A
Retailer 10
-
£1,850 GBP
View
Retailer 11
-
£2,086 GBP
View
Price last confirmed 31 days ago
B+
Retailer 12
-
£2,802 GBP
View
Most Expensive
B
NZ Jewellers
79f77207-86d8-4b91-b4d2-81c3930980de · Nov 5
£3,352 GBP
$4,487 USD
View
12 more retailers have this diamond
Prices start from £1,448 GBPSave up to £1,904 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
1.03ct Marquise
£1,448 GBP