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Cushion|Natural|GIA

2.50ct I SI2 Cushion Natural Diamond

GD • I/SI2 • GIA 6552015798

Certificate GIA 6552015798

Diamond specifications and retailer prices

From £12,339 GBP
$16,533 USD
As of October 31, 2026
Save £3,476 GBP (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £15,815 GBP at 77 Diamonds · As of October 28, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552015798. Listed at 10 retailers as of October 28, 2026, with prices from £12,339 to £15,815, a £3,476 spread on the same certified stone. 77 Diamonds lists it at £15,815. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552015798
Dimensions9.17 × 7.01 × 4.88 mm
L/W Ratio1.31
Top View
9.17 mm7.01 mm2.50 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552015798
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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: Oct 31
Current: £15,815 GBP|Low: £12,339 GBP|High: £17,870 GBP|Avg: £15,121 GBP|-6.5%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 28, 2026
Retailer 6£12,339 GBP
Retailer 2£12,482 GBP
Retailer 7£13,005 GBP
Retailer 8£13,219 GBP
Retailer 3£14,162 GBP
Retailer 10£14,765 GBP
Retailer 4£15,233 GBP
Retailer 9£15,233 GBP
Retailer 5£15,740 GBP
77 Diamonds£15,815 GBP
Retailer 11£17,870 GBP

34 data points across 11 retailers

10 retailers£12,339 GBP to £15,815 GBP

B+
Cheapest Retailer
-
£12,339 GBP
$16,533 USD
B+
Retailer 2
-
£12,482 GBP
$16,725 USD
View
B+
Retailer 3
-
£13,005 GBP
$17,425 USD
View
B+
Retailer 4
-
£13,192 GBP
A$27,194 AUD
View
B+
Retailer 5
-
£13,219 GBP
$17,712 USD
View
B+
Retailer 6
-
£14,765 GBP
$19,784 USD
View
B
Retailer 7
-
£15,233 GBP
$20,410 USD
View
B
Retailer 8
-
£15,233 GBP
$20,410 USD
View
B
Retailer 9
-
£15,740 GBP
$21,090 USD
View
Most Expensive
B
77 Diamonds
CUSZHV6G53AS · Oct 28
£15,815 GBP
View
9 more retailers have this diamond
Prices start from £12,339 GBPSave up to £3,476 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
£12,339 GBP