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Cushion|Natural|GIA

1.53ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5553442094

Certificate GIA 5553442094

Diamond specifications and retailer prices

From £1,654 GBP
As of November 6, 2026
Save £1,958 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,612 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.53ct natural cushion diamond

This 1.53ct 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553442094. Listed at 15 retailers as of November 4, 2026, with prices from £1,654 to £3,612, a £1,958 spread on the same certified stone. MOH London lists it at £3,612. 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

1.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553442094
Dimensions7.55 × 5.78 × 4.21 mm
L/W Ratio1.31
Girdle conditionFaceted
Top View
7.55 mm5.78 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553442094
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.9%

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: £3,612 GBP|Low: £1,626 GBP|High: £3,895 GBP|Avg: £2,493 GBP|-7.3%
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
November 6, 2026
Retailer 3£1,654 GBP
Retailer 9£1,895 GBP
Retailer 12£1,999 GBP
Retailer 13£2,080 GBP
Retailer 11£2,118 GBP
Retailer 4£2,256 GBP
Retailer 6£2,273 GBP
Retailer 8£2,279 GBP
Retailer 7£2,297 GBP
Retailer 2£2,521 GBP
Retailer 5£2,548 GBP
Retailer 10£2,643 GBP
Retailer 14£3,482 GBP
MOH London£3,612 GBP

30 data points across 14 retailers

15 retailers£1,654 GBP to £3,612 GBP

A
Cheapest Retailer
-
£1,654 GBP
A
Retailer 2
-
£1,895 GBP
View
A
Retailer 3
-
£1,999 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,080 GBP
View
A
Retailer 5
-
£2,118 GBP
View
A
Retailer 6
-
£2,256 GBP
View
A
Retailer 7
-
£2,273 GBP
View
A
Retailer 8
-
£2,279 GBP
View
A
Retailer 9
-
£2,297 GBP
View
B+
Retailer 10
-
£2,383 GBP
View
A
Retailer 11
-
£2,521 GBP
View
B+
Retailer 12
-
£2,548 GBP
View
B+
Retailer 13
-
£2,643 GBP
View
B
Retailer 14
-
£3,482 GBP
View
Most Expensive
B+
MOH London
F3F6790F5 · Nov 4
£3,612 GBP
View
14 more retailers have this diamond
Prices start from £1,654 GBPSave up to £1,958 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
1.53ct Cushion
£1,654 GBP