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Marquise|Natural|GIA

2.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 7548044652

Certificate GIA 7548044652

Diamond specifications and retailer prices

From £16,879 GBP
$22,650 USD
As of November 1, 2026
Save £5,027 GBP (23%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £21,906 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 2.5ct natural marquise diamond

This 2.5ct natural marquise sits in the two to three 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 7548044652. Listed at 8 retailers as of October 27, 2026, with prices from £16,879 to £21,906, a £5,027 spread on the same certified stone. Wholesale Diamonds Direct lists it at £21,906. 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

2.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7548044652
Dimensions13.08 × 7.08 × 4.57 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural, Natural
Top View
13.08 mm7.08 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7548044652
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.5%

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 1
Current: £21,292 GBP|Low: £16,879 GBP|High: £24,875 GBP|Avg: £20,349 GBP|+3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 2, 2026
Retailer 8£16,879 GBP
Retailer 2£18,846 GBP
Retailer 3£19,137 GBP
Retailer 5£19,733 GBP
Retailer 6£19,733 GBP
Retailer 7£20,388 GBP
Retailer 1£21,292 GBP
Wholesale Diamonds Direct£21,906 GBP
Retailer 4£24,875 GBP

40 data points across 9 retailers

8 retailers£16,879 GBP to £21,906 GBP

A
Cheapest Retailer
-
£16,879 GBP
$22,650 USD
B+
Retailer 2
-
£18,846 GBP
View
B+
Retailer 3
-
£19,137 GBP
$25,681 USD
View
B+
Retailer 4
-
£19,733 GBP
$26,480 USD
View
B+
Retailer 5
-
£19,733 GBP
$26,480 USD
View
B
Retailer 6
-
£20,388 GBP
$27,360 USD
View
B
Retailer 7
-
£21,292 GBP
€27,212 EUR
View
Most Expensive
B
Wholesale Diamonds Direct
210227125 · Oct 27
£21,906 GBP
$29,396 USD
View
7 more retailers have this diamond
Prices start from £16,879 GBPSave up to £5,027 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
2.50ct Marquise
£16,879 GBP