Cushion|Natural|GIA

2.50ct F SI2 Cushion Natural Diamond

GD • F/SI2 • GIA 1555583120

Certificate GIA 1555583120

Diamond specifications and retailer prices

From £12,641 GBP
A$26,098 AUD
As of November 2, 2026
10 retailers carry this diamond
Most expensive: £18,121 GBP at MOH London · As of October 21, 2026
View at MOH London

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555583120. Listed at 10 retailers as of November 2, 2026. 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
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555583120
Dimensions9.30 × 6.70 × 4.80 mm
L/W Ratio1.39
Girdle conditionFaceted
Top View
9.30 mm6.70 mm2.50 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555583120
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 71.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £18,121 GBP|Low: £9,720 GBP|High: £32,890 GBP|Avg: £12,359 GBP|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 22, 2026
Retailer 10£9,720 GBP
Retailer 8£10,638 GBP
Retailer 7£10,726 GBP
Retailer 4£10,782 GBP
Retailer 9£10,909 GBP
Retailer 2£10,938 GBP
Retailer 12£10,992 GBP
Retailer 11£11,060 GBP
Retailer 5£11,692 GBP
Retailer 3£13,899 GBP
Retailer 6£14,203 GBP
MOH London£18,121 GBP

30 data points across 12 retailers

10 retailers

Retailer 1
-
£9,720 GBP
HK$101,900 HKD
Price last confirmed 13 days ago
Retailer 2
-
£10,638 GBP
$14,276 USD
View
Price last confirmed 10 days ago
Retailer 3
-
£10,726 GBP
$14,393 USD
View
Price last confirmed 12 days ago
Retailer 4
-
£10,909 GBP
$14,640 USD
View
Price last confirmed 12 days ago
Retailer 5
-
£10,938 GBP
₹1,397,890 INR
View
Price last confirmed 11 days ago
Retailer 6
-
£10,992 GBP
$14,750 USD
View
Price last confirmed 11 days ago
Retailer 7
-
£11,692 GBP
View
Price last confirmed 11 days ago
B+
Retailer 8
-
£12,641 GBP
A$26,098 AUD
View
Retailer 9
-
£14,203 GBP
$19,059 USD
View
Price last confirmed 12 days ago
Most Expensive
MOH London
8CA18DFC9 · Oct 21
£18,121 GBP
View
Price last confirmed 12 days ago
9 more retailers have this diamond
Prices start from £12,641 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+
2.50ct Cushion
£12,641 GBP