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Cushion|Natural|GIA

1.53ct L SI1 Cushion Natural Diamond

EX • L/SI1 • GIA 1549473757

Certificate GIA 1549473757

Diamond specifications and retailer prices

From £1,440 GBP
As of November 6, 2026
Save £4,437 GBP (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,906 GBP at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.53ct natural cushion diamond

This 1.53ct natural cushion sits in the one-and-a-half to two carat band, graded L 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 1549473757. Listed at 8 retailers as of November 1, 2026, with a 308% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1549473757
Dimensions7.97 × 6.10 × 3.91 mm
L/W Ratio1.31
Top View
7.97 mm6.10 mm1.53 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549473757
Side View
Table 66.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 64.1%

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: £6,906 GBP|Low: £1,440 GBP|High: £6,954 GBP|Avg: £2,946 GBP|+205.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2£1,440 GBP
Retailer 3£2,261 GBP
Retailer 7£4,967 GBP
Retailer 6£5,226 GBP
Retailer 4£5,596 GBP
Retailer 8£5,878 GBP
Retailer 5£6,182 GBP
Cape Diamonds£6,906 GBP

41 data points across 8 retailers

8 retailers£1,440 GBP to £5,878 GBP

A
Cheapest Retailer
-
£1,440 GBP
B+
Retailer 2
-
£2,261 GBP
View
B
Retailer 3
-
£4,967 GBP
View
B
Retailer 4
-
£5,226 GBP
View
B
Retailer 5
-
£5,596 GBP
View
B
Retailer 6
-
£5,878 GBP
View
Retailer 7
-
£6,182 GBP
View
Price under review
Most Expensive
Cape Diamonds
cert_1549473757 · Nov 5
£6,906 GBP
ZAR 149,334 ZAR
View
Price under review
7 more retailers have this diamond
Prices start from £1,440 GBPSave up to £4,437 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
£1,440 GBP