Round|Natural|GIA

0.80ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7518428781

Certificate GIA 7518428781

Diamond specifications and retailer prices

From £832 GBP
$1,115 USD
As of October 25, 2026
Save £945 GBP (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,364 GBP at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

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 7518428781. Listed at 21 retailers as of October 25, 2026, with a 114% 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

0.80
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7518428781
Dimensions5.89 × 5.85 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
5.89 mm5.85 mm0.80 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7518428781
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 63.2%

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: Oct 25
Current: £955 GBP|Low: £675 GBP|High: £1,796 GBP|Avg: £1,064 GBP|+5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8£811 GBP
Retailer 7£832 GBP
Retailer 2£841 GBP
Retailer 9£843 GBP
Retailer 6£878 GBP
Retailer 10£920 GBP
Retailer 1£955 GBP
Retailer 3£1,290 GBP
Retailer 4£1,353 GBP
Retailer 5£1,777 GBP

38 data points across 10 retailers

21 retailers£832 GBP to £1,777 GBP

B+
Cheapest Retailer
-
£832 GBP
$1,115 USD
B+
Retailer 2
-
£841 GBP
$1,127 USD
View
B+
Retailer 3
-
£843 GBP
$1,129 USD
View
B+
Retailer 4
-
£862 GBP
$1,155 USD
View
B+
Retailer 5
-
£878 GBP
$1,176 USD
View
Retailer 6
-
£878 GBP
$1,176 USD
View
Price last confirmed 32 days ago
Retailer 7
-
£878 GBP
$1,176 USD
View
Price last confirmed 22 days ago
Retailer 8
-
£878 GBP
$1,176 USD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
£920 GBP
$1,233 USD
View
B+
Retailer 10
-
£946 GBP
$1,267 USD
View
B+
Retailer 11
-
£955 GBP
View
Retailer 12
-
£1,013 GBP
$1,357 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
£1,013 GBP
$1,357 USD
View
B
Retailer 14
-
£1,015 GBP
$1,360 USD
View
B
Retailer 15
-
£1,015 GBP
$1,360 USD
View
B
Retailer 16
-
£1,052 GBP
$1,410 USD
View
B
Retailer 17
-
£1,290 GBP
View
B
Retailer 18
-
£1,353 GBP
€1,727 EUR
View
B
Retailer 19
-
£1,777 GBP
View
Retailer 20
-
£2,364 GBP
$3,167 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
01280d2d-e210-49bc-b0cf-4261d6adf45c · Oct 3
£2,364 GBP
$3,167 USD
View
Price last confirmed 28 days ago
20 more retailers have this diamond
Prices start from £832 GBPSave up to £945 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+
0.80ct Round
£832 GBP