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Cushion|Natural|GIA

1.53ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 5456336577

Certificate GIA 5456336577

Diamond specifications and retailer prices

From £8,179 GBP
€10,453 EUR
As of November 2, 2026
9 retailers carry this diamond
Most expensive: £8,179 GBP at Belgium Diamonds
View at Belgium 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5456336577. Listed at 9 retailers as of November 2, 2026. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5456336577
Dimensions6.71 × 6.29 × 4.33 mm
L/W Ratio1.07
Top View
6.71 mm6.29 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5456336577
Side View
Table 63.0%CrownGirdle: MediumPavilionCulet: NoneDepth 68.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £4,102 GBP|Low: £3,240 GBP|High: £6,789 GBP|Avg: £4,352 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 20, 2026
Retailer 2£3,673 GBP
Retailer 4£3,700 GBP
Retailer 9£3,888 GBP
Retailer 3£3,900 GBP
Retailer 10£3,938 GBP
Retailer 1£4,102 GBP
Retailer 6£4,235 GBP
Retailer 11£4,327 GBP
Retailer 5£4,731 GBP
Retailer 8£5,113 GBP
Retailer 7£6,745 GBP

28 data points across 11 retailers

9 retailers

Retailer 1
-
£3,673 GBP
$4,929 USD
Price last confirmed 13 days ago
Retailer 2
-
£3,700 GBP
$4,965 USD
View
Price last confirmed 14 days ago
Retailer 3
-
£3,938 GBP
$5,285 USD
View
Price last confirmed 13 days ago
Retailer 4
-
£4,102 GBP
View
Price last confirmed 13 days ago
Retailer 5
-
£4,235 GBP
A$8,743 AUD
View
Price last confirmed 15 days ago
Retailer 6
-
£4,327 GBP
$5,807 USD
View
Price last confirmed 15 days ago
Retailer 7
-
£5,113 GBP
ZAR 110,845 ZAR
View
Price last confirmed 16 days ago
Retailer 8
-
£6,745 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
Belgium Diamonds
427921557 · Nov 2
£8,179 GBP
€10,453 EUR
View
8 more retailers have this diamond

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
1.53ct Cushion
£8,179 GBP