Round|Natural|GIA

0.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7288587039

Certificate GIA 7288587039

Diamond specifications and retailer prices

From £528 GBP
As of November 6, 2026
Save £779 GBP (60%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,307 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.5ct natural round diamond

This 0.5ct 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 7288587039. Listed at 23 retailers as of November 2, 2026, with prices from £528 to £1,307, a £779 spread on the same certified stone. MOH London lists it at £1,307. 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

0.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7288587039
Dimensions5.14 × 5.12 × 3.09 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
5.14 mm5.12 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7288587039
Side View
Table 61.0%Crown 34°Girdle: STK-STKPavilion 41°Culet: NoneDepth 60.2%

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: £1,307 GBP|Low: £528 GBP|High: £1,321 GBP|Avg: £868 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£528 GBP
Retailer 8£658 GBP
Retailer 7£684 GBP
Retailer 3£817 GBP
Retailer 5£854 GBP
Retailer 4£921 GBP
Retailer 9£1,072 GBP
Retailer 6£1,101 GBP
MOH London£1,307 GBP

37 data points across 9 retailers

23 retailers£528 GBP to £1,307 GBP

B+
Cheapest Retailer
-
£528 GBP
B
Retailer 2
-
£637 GBP
View
B
Retailer 3
-
£658 GBP
View
Final sale: no returns
B
Retailer 4
-
£684 GBP
View
Retailer 5
-
£713 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£713 GBP
View
Price last confirmed 50 days ago
B
Retailer 7
-
£713 GBP
View
B
Retailer 8
-
£721 GBP
View
B
Retailer 9
-
£741 GBP
View
B
Retailer 10
-
£753 GBP
View
B
Retailer 11
-
£812 GBP
View
B
Retailer 12
-
£817 GBP
View
B
Retailer 13
-
£823 GBP
View
Retailer 14
-
£823 GBP
View
Price last confirmed 45 days ago
B
Retailer 15
-
£825 GBP
View
B
Retailer 16
-
£854 GBP
View
B
Retailer 17
-
£921 GBP
View
B
Retailer 18
-
£932 GBP
View
Retailer 19
-
£1,072 GBP
View
Price last confirmed 32 days ago
B
Retailer 20
-
£1,101 GBP
View
Most Expensive
B
MOH London
3BCAAF436 · Nov 2
£1,307 GBP
View
20 more retailers have this diamond
Prices start from £528 GBPSave up to £779 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+
0.50ct Round
£528 GBP