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Round|Natural|IGI

1.20ct J VVS1 Round Natural Diamond

EX • J/VVS1 • IGI 778651815

Shape and cutting style on the report: Round brilliant

Certificate IGI 778651815

Diamond specifications and retailer prices

From £1,535 GBP
As of November 6, 2026
Save £2,465 GBP (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,000 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 778651815. Listed at 18 retailers as of November 5, 2026, with prices from £1,535 to £4,000, a £2,465 spread on the same certified stone. NZ Jewellers lists it at £4,000. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
J
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 778651815
Dimensions6.72 × 6.78 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.72 mm6.78 mm1.20 ctJ / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 778651815
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: £1,535 GBP|Low: £1,535 GBP|High: £3,388 GBP|Avg: £2,104 GBP|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1£1,535 GBP
Retailer 9£1,739 GBP
Retailer 4£1,742 GBP
Retailer 2£1,766 GBP
Retailer 3£1,913 GBP
Retailer 11£2,002 GBP
Retailer 5£2,048 GBP
Retailer 6£2,241 GBP
Retailer 8£2,335 GBP
Retailer 7£2,369 GBP
Retailer 10£3,352 GBP

29 data points across 11 retailers

18 retailers£1,535 GBP to £4,000 GBP

A
Cheapest Retailer
-
£1,535 GBP
A
Retailer 2
-
£1,704 GBP
View
A
Retailer 3
-
£1,713 GBP
View
A
Retailer 4
-
£1,739 GBP
View
A
Retailer 5
-
£1,742 GBP
View
A
Retailer 6
-
£1,766 GBP
View
Final sale: no returns
A
Retailer 7
-
£1,881 GBP
View
A
Retailer 8
-
£1,895 GBP
View
A
Retailer 9
-
£1,913 GBP
View
Retailer 10
-
£1,913 GBP
View
Price last confirmed 8 days ago
A
Retailer 11
-
£2,002 GBP
View
A
Retailer 12
-
£2,048 GBP
View
B+
Retailer 13
-
£2,207 GBP
View
A
Retailer 14
-
£2,241 GBP
View
B+
Retailer 15
-
£2,335 GBP
View
B+
Retailer 16
-
£2,369 GBP
View
B
Retailer 17
-
£3,352 GBP
View
Most Expensive
B
NZ Jewellers
35bd84ba-089c-4aa4-b75d-7507b6a330ba · Nov 5
£4,000 GBP
$5,384 USD
View
17 more retailers have this diamond
Prices start from £1,535 GBPSave up to £2,465 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
1.20ct Round
£1,535 GBP