CaratHunter
Plans
Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6405725798

Certificate GIA 6405725798

Diamond specifications and retailer prices

From £718 GBP
₹91,658 INR
As of October 31, 2026
Save £1,636 GBP (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,354 GBP at NZ Jewellers · As of October 30, 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 6405725798. Listed at 21 retailers as of October 30, 2026, with prices from £718 to £2,354, a £1,636 spread on the same certified stone. NZ Jewellers lists it at £2,354. 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
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6405725798
Dimensions5.94 × 5.91 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.94 mm5.91 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405725798
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: £1,768 GBP|Low: £716 GBP|High: £2,611 GBP|Avg: £1,163 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6£718 GBP
Retailer 2£890 GBP
Retailer 11£894 GBP
Retailer 12£903 GBP
Retailer 4£965 GBP
Retailer 9£1,052 GBP
Retailer 5£1,096 GBP
Retailer 10£1,147 GBP
Retailer 8£1,253 GBP
Retailer 3£1,262 GBP
Retailer 7£1,428 GBP
Retailer 1£1,768 GBP

33 data points across 12 retailers

21 retailers£718 GBP to £2,354 GBP

A
Cheapest Retailer
-
£718 GBP
₹91,658 INR
Retailer 2
-
£745 GBP
HK$7,800 HKD
View
Price last confirmed 57 days ago
B+
Retailer 3
-
£861 GBP
$1,154 USD
View
B+
Retailer 4
-
£890 GBP
$1,193 USD
View
Final sale: no returns
B+
Retailer 5
-
£894 GBP
$1,198 USD
View
B+
Retailer 6
-
£903 GBP
$1,210 USD
View
Retailer 7
-
£965 GBP
$1,293 USD
View
Price last confirmed 38 days ago
Retailer 8
-
£965 GBP
$1,293 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
£965 GBP
$1,293 USD
View
B+
Retailer 10
-
£1,052 GBP
$1,410 USD
View
B
Retailer 11
-
£1,066 GBP
$1,428 USD
View
B
Retailer 12
-
£1,096 GBP
View
B+
Retailer 13
-
£1,114 GBP
$1,492 USD
View
Retailer 14
-
£1,114 GBP
$1,492 USD
View
Price last confirmed 40 days ago
B
Retailer 15
-
£1,147 GBP
View
B
Retailer 16
-
£1,253 GBP
€1,599 EUR
View
Retailer 17
-
£1,262 GBP
A$2,601 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£1,428 GBP
ZAR 30,900 ZAR
View
B
Retailer 19
-
£1,768 GBP
View
Retailer 20
-
£2,354 GBP
$3,154 USD
View
Price last confirmed 40 days ago
Most Expensive
B
NZ Jewellers
1e096078-c2b6-44c9-9d1f-7ea2608ddbbb · Oct 30
£2,354 GBP
$3,154 USD
View
20 more retailers have this diamond
Prices start from £718 GBPSave up to £1,636 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
£718 GBP