CaratHunter
Plans
Cushion|Natural|GIA

1.50ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 1565498678

Certificate GIA 1565498678

Diamond specifications and retailer prices

From £3,074 GBP
As of November 6, 2026
Save £3,354 GBP (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,427 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565498678. Listed at 16 retailers as of November 4, 2026, with prices from £3,074 to £6,427, a £3,354 spread on the same certified stone. MOH London lists it at £6,427. 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

1.50
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565498678
Dimensions8.13 × 6.01 × 4.02 mm
L/W Ratio1.35
Girdle conditionFaceted
Top View
8.13 mm6.01 mm1.50 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565498678
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.8%

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: £6,427 GBP|Low: £2,965 GBP|High: £6,810 GBP|Avg: £4,076 GBP|-0.0%
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 17£3,074 GBP
Retailer 4£3,127 GBP
Retailer 13£3,190 GBP
Retailer 14£3,319 GBP
Retailer 7£3,390 GBP
Retailer 12£3,464 GBP
Retailer 16£3,633 GBP
Retailer 6£3,657 GBP
Retailer 5£3,721 GBP
Retailer 3£3,728 GBP
Retailer 8£3,808 GBP
Retailer 11£3,889 GBP
Retailer 2£4,244 GBP
Retailer 9£4,297 GBP
Retailer 10£4,700 GBP
Retailer 15£6,390 GBP
MOH London£6,427 GBP

23 data points across 17 retailers

16 retailers£3,074 GBP to £6,427 GBP

A
Cheapest Retailer
-
£3,074 GBP
A
Retailer 2
-
£3,127 GBP
View
A
Retailer 3
-
£3,190 GBP
View
A
Retailer 4
-
£3,319 GBP
View
A
Retailer 5
-
£3,390 GBP
View
B+
Retailer 6
-
£3,464 GBP
View
B+
Retailer 7
-
£3,633 GBP
View
B+
Retailer 8
-
£3,657 GBP
View
Final sale: no returns
B+
Retailer 9
-
£3,721 GBP
View
B+
Retailer 10
-
£3,728 GBP
View
Retailer 11
-
£3,808 GBP
View
Price last confirmed 21 days ago
B+
Retailer 12
-
£3,889 GBP
View
B+
Retailer 13
-
£4,244 GBP
View
B
Retailer 14
-
£4,700 GBP
View
B
Retailer 15
-
£6,390 GBP
View
Most Expensive
B
MOH London
59BE0F6B8 · Nov 4
£6,427 GBP
View
15 more retailers have this diamond
Prices start from £3,074 GBPSave up to £3,354 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
1.50ct Cushion
£3,074 GBP