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Round|Natural|GIA

1.53ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6461962650

Certificate GIA 6461962650

Diamond specifications and retailer prices

From £4,685 GBP
As of November 1, 2026
Save £3,687 GBP (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £10,074 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6461962650. Listed at 15 retailers as of November 1, 2026, with a 79% 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6461962650
Dimensions7.43 × 7.40 × 4.57 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.43 mm7.40 mm1.53 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6461962650
Side View
Table 55.0%Crown 34°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 1
Current: £5,555 GBP|Low: £4,198 GBP|High: £8,495 GBP|Avg: £6,159 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6£4,685 GBP
Retailer 7£5,037 GBP
Retailer 8£5,540 GBP
Retailer 1£5,555 GBP
Retailer 5£5,772 GBP
Retailer 3£6,538 GBP
Retailer 2£7,348 GBP
Retailer 4£8,371 GBP

45 data points across 8 retailers

15 retailers£4,685 GBP to £8,371 GBP

B+
Cheapest Retailer
-
£4,685 GBP
B
Retailer 2
-
£4,759 GBP
View
Retailer 3
-
£5,037 GBP
View
Price last confirmed 8 days ago
B
Retailer 4
-
£5,037 GBP
View
Final sale: no returns
B
Retailer 5
-
£5,045 GBP
View
B
Retailer 6
-
£5,457 GBP
View
B
Retailer 7
-
£5,540 GBP
View
B
Retailer 8
-
£5,555 GBP
View
Retailer 9
-
£5,772 GBP
View
Price last confirmed 15 days ago
B
Retailer 10
-
£6,296 GBP
View
B
Retailer 11
-
£6,538 GBP
View
Retailer 12
-
£6,634 GBP
View
Price last confirmed 14 days ago
B
Retailer 13
-
£7,348 GBP
View
B
Retailer 14
-
£8,371 GBP
View
Most Expensive
NZ Jewellers
46ca4eae-4705-4ccb-aafb-85a9e83781f0 · Nov 5
£10,074 GBP
$13,559 USD
View
Price under review
14 more retailers have this diamond
Prices start from £4,685 GBPSave up to £3,687 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 Round
£4,685 GBP