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Cushion|Natural|GIA

1.53ct K SI1 Cushion Natural Diamond

FR • K/SI1 • GIA 6552373681

Certificate GIA 6552373681

Diamond specifications and retailer prices

From £1,778 GBP
As of November 6, 2026
Save £2,061 GBP (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,839 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6552373681. Listed at 14 retailers as of November 4, 2026, with prices from £1,778 to £3,839, a £2,061 spread on the same certified stone. MOH London lists it at £3,839. 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

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

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552373681
Dimensions7.61 × 5.83 × 4.23 mm
L/W Ratio1.31
Girdle conditionFaceted
Top View
7.61 mm5.83 mm1.53 ctK / SI1
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552373681
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 72.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,839 GBP|Low: £1,759 GBP|High: £4,115 GBP|Avg: £2,453 GBP|-6.7%
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
November 6, 2026
Retailer 4£1,778 GBP
Retailer 2£1,863 GBP
Retailer 13£1,875 GBP
Retailer 9£1,904 GBP
Retailer 10£1,925 GBP
Retailer 11£1,934 GBP
Retailer 5£2,185 GBP
Retailer 3£2,234 GBP
Retailer 7£2,379 GBP
Retailer 6£2,678 GBP
Retailer 8£2,809 GBP
Retailer 12£3,677 GBP
MOH London£3,839 GBP

30 data points across 13 retailers

14 retailers£1,778 GBP to £3,839 GBP

B+
Cheapest Retailer
-
£1,778 GBP
B+
Retailer 2
-
£1,863 GBP
View
B+
Retailer 3
-
£1,875 GBP
View
B+
Retailer 4
-
£1,904 GBP
View
B+
Retailer 5
-
£1,925 GBP
View
Final sale: no returns
B+
Retailer 6
-
£1,934 GBP
View
B+
Retailer 7
-
£2,185 GBP
View
B+
Retailer 8
-
£2,234 GBP
View
B+
Retailer 9
-
£2,379 GBP
View
B+
Retailer 10
-
£2,504 GBP
View
B+
Retailer 11
-
£2,678 GBP
View
B+
Retailer 12
-
£2,809 GBP
View
B
Retailer 13
-
£3,677 GBP
View
Most Expensive
B
MOH London
239CCDE5F · Nov 4
£3,839 GBP
View
13 more retailers have this diamond
Prices start from £1,778 GBPSave up to £2,061 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.

B+
1.53ct Cushion
£1,778 GBP