Round|Natural|GIA

0.86ct J I1 Round Natural Diamond

EX • J/I1 • GIA 6431462723

Certificate GIA 6431462723

Diamond specifications and retailer prices

From £391 GBP
₹49,950 INR
As of November 1, 2026
Save £1,274 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,665 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 0.86ct natural round diamond

This 0.86ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6431462723. Listed at 11 retailers as of October 30, 2026, with a 325% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.86
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6431462723
Dimensions6.05 × 6.08 × 3.79 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.05 mm6.08 mm0.86 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6431462723
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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 1
Current: £391 GBP|Low: £391 GBP|High: £766 GBP|Avg: £622 GBP|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 1£391 GBP
Retailer 3£531 GBP
Retailer 4£631 GBP
Retailer 2£752 GBP
Retailer 5£766 GBP

45 data points across 5 retailers

11 retailers£391 GBP to £1,665 GBP

A
Cheapest Retailer
-
£391 GBP
₹49,950 INR
Retailer 2
-
£531 GBP
$711 USD
View
Price last confirmed 31 days ago
B+
Retailer 3
-
£531 GBP
$711 USD
View
Retailer 4
-
£552 GBP
$739 USD
View
Price last confirmed 33 days ago
B+
Retailer 5
-
£613 GBP
$821 USD
View
Retailer 6
-
£613 GBP
$821 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
£631 GBP
$845 USD
View
B+
Retailer 8
-
£752 GBP
€959 EUR
View
C
Retailer 9
-
£1,665 GBP
$2,231 USD
View
Retailer 10
-
£1,665 GBP
$2,231 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
a396dea8-8f5a-4679-93ab-b016a65a5670 · Oct 23
£1,665 GBP
$2,231 USD
View
Price last confirmed 9 days ago
10 more retailers have this diamond
Prices start from £391 GBPSave up to £1,274 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
0.86ct Round
£391 GBP