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Cushion|Natural|GIA

2.50ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 6552840204

Certificate GIA 6552840204

Diamond specifications and retailer prices

From £12,753 GBP
A$26,328 AUD
As of November 2, 2026
Save £4,404 GBP (26%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £17,157 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 2.5ct natural cushion diamond

This 2.5ct natural cushion sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552840204. Listed at 6 retailers as of November 2, 2026, with prices from £12,753 to £17,157, a £4,404 spread on the same certified stone. 77 Diamonds lists it at £17,157. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6552840204
Dimensions9.12 × 7.01 × 4.89 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural
Top View
9.12 mm7.01 mm2.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6552840204
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £17,157 GBP|Low: £9,920 GBP|High: £17,325 GBP|Avg: £13,805 GBP|+41.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£9,920 GBP
Retailer 4£12,753 GBP
Retailer 7£13,374 GBP
Retailer 3£14,280 GBP
Retailer 2£14,471 GBP
Retailer 6£15,303 GBP
77 Diamonds£17,157 GBP

32 data points across 7 retailers

6 retailers£12,753 GBP to £17,157 GBP

Retailer 1
-
£9,920 GBP
HK$104,000 HKD
Price last confirmed 54 days ago
A
Retailer 2
-
£12,753 GBP
A$26,328 AUD
View
Retailer 3
-
£14,280 GBP
₹1,825,019 INR
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£14,471 GBP
CA$26,971 CAD
View
B+
Retailer 5
-
£14,584 GBP
A$30,109 AUD
View
Most Expensive
B+
77 Diamonds
CUSMBMGRGYAAA · Nov 2
£17,157 GBP
View
5 more retailers have this diamond
Prices start from £12,753 GBPSave up to £4,404 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 Cushion
£12,753 GBP