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Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 6247005011

Certificate GIA 6247005011

Diamond specifications and retailer prices

From £1,530 GBP
As of November 6, 2026
Save £2,088 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,618 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6247005011. Listed at 16 retailers as of November 4, 2026, with prices from £1,530 to £3,618, a £2,088 spread on the same certified stone. MOH London lists it at £3,618. 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

1.51
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6247005011
Dimensions7.47 × 5.74 × 4.16 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.47 mm5.74 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6247005011
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 72.4%

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: £3,618 GBP|Low: £1,501 GBP|High: £3,703 GBP|Avg: £2,313 GBP|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 15£1,530 GBP
Retailer 12£1,911 GBP
Retailer 13£1,932 GBP
Retailer 5£1,950 GBP
Retailer 11£1,999 GBP
Retailer 2£2,008 GBP
Retailer 3£2,106 GBP
Retailer 9£2,127 GBP
Retailer 7£2,147 GBP
Retailer 6£2,273 GBP
Retailer 4£2,398 GBP
Retailer 8£2,410 GBP
Retailer 10£2,527 GBP
Retailer 14£3,242 GBP
MOH London£3,618 GBP

24 data points across 15 retailers

16 retailers£1,530 GBP to £3,618 GBP

A
Cheapest Retailer
-
£1,530 GBP
B+
Retailer 2
-
£1,911 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,932 GBP
View
B+
Retailer 4
-
£1,950 GBP
View
B+
Retailer 5
-
£1,999 GBP
View
B+
Retailer 6
-
£2,008 GBP
View
B+
Retailer 7
-
£2,106 GBP
View
B+
Retailer 8
-
£2,127 GBP
View
B+
Retailer 9
-
£2,147 GBP
View
B+
Retailer 10
-
£2,238 GBP
View
Retailer 11
-
£2,273 GBP
View
Price last confirmed 18 days ago
B+
Retailer 12
-
£2,398 GBP
View
B+
Retailer 13
-
£2,410 GBP
View
B+
Retailer 14
-
£2,527 GBP
View
B
Retailer 15
-
£3,242 GBP
View
Most Expensive
B
MOH London
F25328684 · Nov 4
£3,618 GBP
View
15 more retailers have this diamond
Prices start from £1,530 GBPSave up to £2,088 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
£1,530 GBP