Round|Natural|GIA

0.53ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1495668504

Certificate GIA 1495668504

Diamond specifications and retailer prices

From £331 GBP
$443 USD
As of October 31, 2026
Save £910 GBP (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,373 GBP at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.53ct natural round diamond

This 0.53ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1495668504. Listed at 16 retailers as of October 27, 2026, with a 275% 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

0.53
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1495668504
Dimensions5.16 × 5.14 × 3.21 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Key to symbols
Cloud, Twinning Wisp, Crystal
Top View
5.16 mm5.14 mm0.53 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1495668504
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: Oct 31
Current: £1,240 GBP|Low: £275 GBP|High: £1,373 GBP|Avg: £520 GBP|-9.7%
NZ Jewellers
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 1, 2026
Retailer 11£331 GBP
Retailer 4£335 GBP
Retailer 3£396 GBP
Retailer 6£396 GBP
Retailer 14£407 GBP
Retailer 8£426 GBP
Retailer 10£426 GBP
Retailer 2£490 GBP
Retailer 13£494 GBP
Retailer 12£545 GBP
Retailer 5£574 GBP
Retailer 7£610 GBP
Retailer 9£915 GBP
NZ Jewellers£1,240 GBP

43 data points across 14 retailers

16 retailers£331 GBP to £1,240 GBP

A
Cheapest Retailer
-
£331 GBP
$443 USD
Final sale: no returns
A
Retailer 2
-
£335 GBP
$449 USD
View
Retailer 3
-
£358 GBP
$480 USD
View
Price last confirmed 34 days ago
B+
Retailer 4
-
£396 GBP
$530 USD
View
B+
Retailer 5
-
£407 GBP
$545 USD
View
Retailer 6
-
£413 GBP
$554 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
£426 GBP
$571 USD
View
Retailer 8
-
£426 GBP
$571 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£490 GBP
View
B+
Retailer 10
-
£494 GBP
$661 USD
View
B+
Retailer 11
-
£545 GBP
$730 USD
View
Retailer 12
-
£574 GBP
A$1,183 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
£610 GBP
ZAR 13,214 ZAR
View
B
Retailer 14
-
£915 GBP
View
B
Retailer 15
-
£1,240 GBP
$1,662 USD
View
Most Expensive
NZ Jewellers
614362c8-7164-4bf9-8bf6-c938dd5b026b · Sep 24
£1,373 GBP
$1,840 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from £331 GBPSave up to £910 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
0.53ct Round
£331 GBP