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Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2225586805

Certificate GIA 2225586805

Diamond specifications and retailer prices

From £7,431 GBP
$9,957 USD
As of November 1, 2026
Save £5,089 GBP (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £12,520 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2225586805. Listed at 14 retailers as of November 1, 2026, with prices from £7,431 to £12,520, a £5,089 spread on the same certified stone. MOH London lists it at £12,520. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2225586805
Dimensions7.18 × 6.08 × 4.16 mm
L/W Ratio1.18
Culet sizeNone
Top View
7.18 mm6.08 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2225586805
Side View
Table 58.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £12,520 GBP|Low: £7,120 GBP|High: £12,671 GBP|Avg: £9,562 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6£7,120 GBP
Retailer 7£8,017 GBP
Retailer 2£8,665 GBP
Retailer 5£8,712 GBP
Retailer 4£9,618 GBP
Retailer 3£11,778 GBP
MOH London£12,520 GBP

43 data points across 7 retailers

14 retailers£7,431 GBP to £12,520 GBP

Retailer 1
-
£7,120 GBP
$9,540 USD
Price last confirmed 11 days ago
B
Retailer 2
-
£7,431 GBP
$9,957 USD
View
B
Retailer 3
-
£7,438 GBP
$9,966 USD
View
B
Retailer 4
-
£7,664 GBP
CA$14,263 CAD
View
B
Retailer 5
-
£7,915 GBP
$10,605 USD
View
B
Retailer 6
-
£8,017 GBP
$10,742 USD
View
B
Retailer 7
-
£8,084 GBP
$10,831 USD
View
B
Retailer 8
-
£8,665 GBP
View
Retailer 9
-
£8,712 GBP
A$17,958 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
£9,265 GBP
$12,414 USD
View
B
Retailer 11
-
£9,618 GBP
€12,274 EUR
View
Retailer 12
-
£10,547 GBP
$14,132 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
£11,778 GBP
ZAR 254,937 ZAR
View
Most Expensive
B
MOH London
7E276AAAE · Nov 1
£12,520 GBP
View
13 more retailers have this diamond
Prices start from £7,431 GBPSave up to £5,089 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
1.51ct Cushion
£7,431 GBP