CaratHunter
Plans
Round|Natural|GIA

0.80ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6512660947

Certificate GIA 6512660947

Diamond specifications and retailer prices

From £429 GBP
As of November 6, 2026
Save £645 GBP (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,075 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512660947. Listed at 6 retailers as of November 4, 2026, with prices from £429 to £1,075, a £645 spread on the same certified stone. MOH London lists it at £1,075. 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

0.80
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6512660947
Dimensions5.94 × 5.90 × 3.66 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
5.94 mm5.90 mm0.80 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512660947
Side View
Table 59.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.7%

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: Nov 6
Current: £1,075 GBP|Low: £429 GBP|High: £1,089 GBP|Avg: £717 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2£429 GBP
Retailer 5£583 GBP
Retailer 6£678 GBP
Retailer 3£692 GBP
Retailer 4£756 GBP
MOH London£1,075 GBP

45 data points across 6 retailers

6 retailers£429 GBP to £1,075 GBP

A
Cheapest Retailer
-
£429 GBP
A
Retailer 2
-
£583 GBP
View
B+
Retailer 3
-
£678 GBP
View
B+
Retailer 4
-
£692 GBP
View
A
Retailer 5
-
£756 GBP
View
Most Expensive
B
MOH London
A165FB99F · Nov 4
£1,075 GBP
View
5 more retailers have this diamond
Prices start from £429 GBPSave up to £645 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
0.80ct Round
£429 GBP