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Marquise|Natural|GIA

3.03ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 2566780508

Certificate GIA 2566780508

Diamond specifications and retailer prices

From £23,310 GBP
As of November 5, 2026
Save £15,136 GBP (39%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £38,446 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 3.03ct natural marquise diamond

This 3.03ct natural marquise sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2566780508. Listed at 15 retailers as of November 2, 2026, with prices from £23,310 to £38,446, a £15,136 spread on the same certified stone. MOH London lists it at £38,446. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.03
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566780508
Dimensions16.10 × 7.61 × 4.42 mm
L/W Ratio2.12
Girdle conditionFaceted
Culet sizeNone
Top View
16.10 mm7.61 mm3.03 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566780508
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NDepth 58.0%

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 5
Current: £38,446 GBP|Low: £23,310 GBP|High: £38,446 GBP|Avg: £27,534 GBP
MOH London
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 5, 2026
Retailer 2£23,310 GBP
Retailer 11£23,493 GBP
Retailer 12£23,654 GBP
Retailer 5£23,654 GBP
Retailer 3£24,351 GBP
Retailer 10£25,054 GBP
Retailer 15£25,324 GBP
Retailer 8£25,547 GBP
Retailer 4£27,095 GBP
Retailer 14£27,955 GBP
Retailer 13£28,247 GBP
Retailer 9£28,726 GBP
Retailer 6£29,030 GBP
Retailer 7£31,912 GBP
MOH London£38,446 GBP

6 data points across 15 retailers

15 retailers£23,310 GBP to £38,446 GBP

B+
Cheapest Retailer
-
£23,310 GBP
B+
Retailer 2
-
£23,493 GBP
View
B
Retailer 3
-
£23,654 GBP
View
Final sale: no returns
B
Retailer 4
-
£23,654 GBP
View
B
Retailer 5
-
£24,351 GBP
View
B
Retailer 6
-
£25,054 GBP
View
B
Retailer 7
-
£25,324 GBP
View
B+
Retailer 8
-
£25,547 GBP
View
B
Retailer 9
-
£27,095 GBP
View
B
Retailer 10
-
£27,955 GBP
View
B
Retailer 11
-
£28,247 GBP
View
B
Retailer 12
-
£28,726 GBP
View
B
Retailer 13
-
£29,030 GBP
View
B
Retailer 14
-
£31,912 GBP
View
Most Expensive
C
MOH London
586A5E640 · Nov 2
£38,446 GBP
View
14 more retailers have this diamond
Prices start from £23,310 GBPSave up to £15,136 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+
3.03ct Marquise
£23,310 GBP