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Cushion|Natural|GIA

1.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 1548679191

Certificate GIA 1548679191

Diamond specifications and retailer prices

From £2,811 GBP
As of November 6, 2026
Save £3,366 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,177 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1548679191. Listed at 20 retailers as of November 6, 2026, with prices from £2,811 to £6,177, a £3,366 spread on the same certified stone. Wholesale Diamonds Direct lists it at £6,177. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 1548679191
Dimensions6.47 × 6.46 × 4.44 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.47 mm6.46 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1548679191
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 38.5°Culet: NDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,274 GBP|Low: £2,764 GBP|High: £6,177 GBP|Avg: £3,912 GBP|-6.3%
Retailer 1
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
Retailer 16
Wholesale Diamonds Direct
November 6, 2026
Retailer 5£2,811 GBP
Retailer 2£3,216 GBP
Retailer 1£3,274 GBP
Retailer 9£3,279 GBP
Retailer 15£3,431 GBP
Retailer 3£3,440 GBP
Retailer 12£3,476 GBP
Retailer 7£3,543 GBP
Retailer 13£3,548 GBP
Retailer 10£3,552 GBP
Retailer 4£3,586 GBP
Retailer 8£3,685 GBP
Retailer 6£4,117 GBP
Retailer 11£4,294 GBP
Retailer 14£4,657 GBP
Retailer 16£6,063 GBP
Wholesale Diamonds Direct£6,177 GBP

20 data points across 17 retailers

20 retailers£2,811 GBP to £6,177 GBP

A
Cheapest Retailer
-
£2,811 GBP
A
Retailer 2
-
£3,216 GBP
View
A
Retailer 3
-
£3,274 GBP
View
Final sale: no returns
A
Retailer 4
-
£3,279 GBP
View
A
Retailer 5
-
£3,431 GBP
View
A
Retailer 6
-
£3,440 GBP
View
A
Retailer 7
-
£3,476 GBP
View
Retailer 8
-
£3,543 GBP
View
Price last confirmed 14 days ago
A
Retailer 9
-
£3,548 GBP
View
A
Retailer 10
-
£3,552 GBP
View
A
Retailer 11
-
£3,586 GBP
View
A
Retailer 12
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£3,685 GBP
View
A
Retailer 13
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£3,685 GBP
View
Retailer 14
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£3,914 GBP
View
Price last confirmed 28 days ago
B+
Retailer 15
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£4,019 GBP
View
A
Retailer 16
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£4,117 GBP
View
A
Retailer 17
-
£4,294 GBP
View
B+
Retailer 18
-
£4,657 GBP
View
B
Retailer 19
-
£6,063 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
625969331 · Nov 6
£6,177 GBP
$8,268 USD
View
19 more retailers have this diamond
Prices start from £2,811 GBPSave up to £3,366 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
£2,811 GBP