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Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 7538986848

Certificate GIA 7538986848

Diamond specifications and retailer prices

From £1,050 GBP
As of November 6, 2026
Save £1,358 GBP (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,408 GBP at MOH London · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7538986848. Listed at 10 retailers as of November 4, 2026, with prices from £1,050 to £2,408, a £1,358 spread on the same certified stone. MOH London lists it at £2,408. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7538986848
Dimensions7.12 × 6.37 × 4.41 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.12 mm6.37 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7538986848
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.3%

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 6
Current: £2,408 GBP|Low: £1,050 GBP|High: £2,607 GBP|Avg: £1,592 GBP|-7.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3£1,050 GBP
Retailer 8£1,255 GBP
Retailer 4£1,373 GBP
Retailer 10£1,410 GBP
Retailer 9£1,436 GBP
Retailer 5£1,480 GBP
Retailer 6£1,496 GBP
Retailer 7£1,511 GBP
Retailer 2£1,902 GBP
MOH London£2,408 GBP

24 data points across 10 retailers

10 retailers£1,050 GBP to £2,408 GBP

A
Cheapest Retailer
-
£1,050 GBP
A
Retailer 2
-
£1,255 GBP
View
A
Retailer 3
-
£1,373 GBP
View
Retailer 4
-
£1,410 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£1,436 GBP
View
A
Retailer 6
-
£1,480 GBP
View
A
Retailer 7
-
£1,496 GBP
View
A
Retailer 8
-
£1,511 GBP
View
B+
Retailer 9
-
£1,902 GBP
View
Most Expensive
B+
MOH London
B65DAFE3E · Nov 4
£2,408 GBP
View
9 more retailers have this diamond
Prices start from £1,050 GBPSave up to £1,358 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
1.51ct Cushion
£1,050 GBP