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Marquise|Natural|GIA

2.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 2235825304

Certificate GIA 2235825304

Diamond specifications and retailer prices

From £14,939 GBP
$20,017 USD
As of November 2, 2026
Save £5,002 GBP (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £19,941 GBP at Yorxs · As of November 2, 2026
View at Yorxs

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2235825304. Listed at 6 retailers as of November 2, 2026, with prices from £14,939 to £19,941, a £5,002 spread on the same certified stone. Yorxs lists it at £19,941. 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

2.50
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235825304
Dimensions14.66 × 6.70 × 4.23 mm
L/W Ratio2.19
Top View
14.66 mm6.70 mm2.50 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2235825304
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.2%

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 2
Current: £16,594 GBP|Low: £14,939 GBP|High: £22,684 GBP|Avg: £18,446 GBP|+10.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
November 2, 2026
Retailer 3£14,939 GBP
Retailer 1£16,594 GBP
Retailer 2£18,075 GBP
Retailer 5£18,628 GBP
Yorxs£19,941 GBP
Retailer 4£22,684 GBP

20 data points across 6 retailers

6 retailers£14,939 GBP to £19,941 GBP

A
Cheapest Retailer
-
£14,939 GBP
$20,017 USD
B+
Retailer 2
-
£16,161 GBP
A$33,313 AUD
View
B+
Retailer 3
-
£16,594 GBP
$22,234 USD
View
Final sale: no returns
B+
Retailer 4
-
£18,075 GBP
$24,218 USD
View
B
Retailer 5
-
£18,628 GBP
$24,960 USD
View
Most Expensive
B
Yorxs
532958132 · Nov 2
£19,941 GBP
€25,447 EUR
View
5 more retailers have this diamond
Prices start from £14,939 GBPSave up to £5,002 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
£14,939 GBP