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0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2566558250

Certificate GIA 2566558250

Diamond specifications and retailer prices

From £545 GBP
As of November 6, 2026
Save £1,762 GBP (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,307 GBP at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566558250. Listed at 15 retailers as of November 5, 2026, with prices from £545 to £2,307, a £1,762 spread on the same certified stone. NZ Jewellers lists it at £2,307. 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

0.80
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2566558250
Dimensions5.94 × 5.95 × 3.69 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
5.94 mm5.95 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2566558250
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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: £2,307 GBP|Low: £545 GBP|High: £2,307 GBP|Avg: £878 GBP
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
Retailer 15
November 6, 2026
Retailer 2£545 GBP
Retailer 4£551 GBP
Retailer 6£678 GBP
Retailer 12£692 GBP
Retailer 3£736 GBP
Retailer 7£736 GBP
Retailer 14£764 GBP
Retailer 13£848 GBP
Retailer 9£857 GBP
Retailer 11£877 GBP
Retailer 8£922 GBP
Retailer 10£958 GBP
Retailer 5£964 GBP
Retailer 15£1,347 GBP
NZ Jewellers£2,307 GBP

24 data points across 15 retailers

15 retailers£545 GBP to £2,307 GBP

A
Cheapest Retailer
-
£545 GBP
A
Retailer 2
-
£551 GBP
View
A
Retailer 3
-
£678 GBP
View
Final sale: no returns
A
Retailer 4
-
£692 GBP
View
A
Retailer 5
-
£736 GBP
View
A
Retailer 6
-
£736 GBP
View
A
Retailer 7
-
£764 GBP
View
B+
Retailer 8
-
£848 GBP
View
B+
Retailer 9
-
£857 GBP
View
B+
Retailer 10
-
£877 GBP
View
B+
Retailer 11
-
£922 GBP
View
B+
Retailer 12
-
£958 GBP
View
B+
Retailer 13
-
£964 GBP
View
B
Retailer 14
-
£1,347 GBP
View
Most Expensive
C
NZ Jewellers
6130c10a-158c-4df9-a89a-b2ad09748024 · Nov 5
£2,307 GBP
$3,105 USD
View
14 more retailers have this diamond
Prices start from £545 GBPSave up to £1,762 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
£545 GBP