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Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 6335776237

Certificate GIA 6335776237

Diamond specifications and retailer prices

From £3,520 GBP
As of November 6, 2026
Save £3,351 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,870 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6335776237. Listed at 15 retailers as of November 4, 2026, with prices from £3,520 to £6,870, a £3,351 spread on the same certified stone. MOH London lists it at £6,870. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6335776237
Dimensions7.12 × 6.38 × 3.93 mm
L/W Ratio1.12
Top View
7.12 mm6.38 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6335776237
Side View
Table 67.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.6%

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 6
Current: £6,870 GBP|Low: £3,520 GBP|High: £6,972 GBP|Avg: £4,631 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£3,520 GBP
Retailer 5£3,586 GBP
Retailer 9£3,960 GBP
Retailer 6£4,236 GBP
Retailer 7£4,430 GBP
Retailer 3£4,442 GBP
Retailer 2£4,810 GBP
Retailer 4£5,705 GBP
MOH London£6,870 GBP

44 data points across 9 retailers

15 retailers£3,520 GBP to £6,870 GBP

B
Cheapest Retailer
-
£3,520 GBP
Retailer 2
-
£3,586 GBP
View
Price last confirmed 10 days ago
B
Retailer 3
-
£3,653 GBP
View
B
Retailer 4
-
£3,694 GBP
View
B
Retailer 5
-
£3,742 GBP
View
B
Retailer 6
-
£3,943 GBP
View
B
Retailer 7
-
£3,960 GBP
View
Retailer 8
-
£4,236 GBP
View
Price last confirmed 9 days ago
B
Retailer 9
-
£4,430 GBP
View
B
Retailer 10
-
£4,442 GBP
View
B
Retailer 11
-
£4,465 GBP
View
B
Retailer 12
-
£4,810 GBP
View
Retailer 13
-
£5,157 GBP
View
Price last confirmed 15 days ago
B
Retailer 14
-
£5,705 GBP
View
Most Expensive
B
MOH London
B1B32B234 · Nov 4
£6,870 GBP
View
14 more retailers have this diamond
Prices start from £3,520 GBPSave up to £3,351 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
£3,520 GBP