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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6382932230

Certificate GIA 6382932230

Diamond specifications and retailer prices

From £1,883 GBP
As of November 6, 2026
Save £2,762 GBP (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,645 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6382932230. Listed at 20 retailers as of November 5, 2026, with prices from £1,883 to £4,645, a £2,762 spread on the same certified stone. NZ Jewellers lists it at £4,645. 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

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6382932230
Dimensions6.76 × 6.73 × 4.23 mm
L/W Ratio1.00
Top View
6.76 mm6.73 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6382932230
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: Nov 6
Current: £2,075 GBP|Low: £2,017 GBP|High: £3,670 GBP|Avg: £2,427 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£2,017 GBP
Retailer 6£2,051 GBP
Retailer 1£2,075 GBP
Retailer 2£2,080 GBP
Retailer 7£2,307 GBP
Retailer 3£2,584 GBP
Retailer 4£3,616 GBP

40 data points across 7 retailers

20 retailers£1,883 GBP to £4,645 GBP

B+
Cheapest Retailer
-
£1,883 GBP
B+
Retailer 2
-
£1,897 GBP
View
B+
Retailer 3
-
£1,990 GBP
View
B+
Retailer 4
-
£2,017 GBP
View
B+
Retailer 5
-
£2,044 GBP
View
B+
Retailer 6
-
£2,051 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,075 GBP
View
B+
Retailer 8
-
£2,080 GBP
View
B
Retailer 9
-
£2,094 GBP
View
B+
Retailer 10
-
£2,207 GBP
View
B+
Retailer 11
-
£2,207 GBP
View
B+
Retailer 12
-
£2,222 GBP
View
Retailer 13
-
£2,222 GBP
View
Price last confirmed 8 days ago
B
Retailer 14
-
£2,281 GBP
View
B
Retailer 15
-
£2,307 GBP
View
B
Retailer 16
-
£2,328 GBP
View
B
Retailer 17
-
£2,564 GBP
View
B
Retailer 18
-
£2,584 GBP
View
B
Retailer 19
-
£3,616 GBP
View
Most Expensive
B
NZ Jewellers
0874056e-1194-4743-8f46-04e62eef5ee1 · Nov 5
£4,645 GBP
$6,252 USD
View
19 more retailers have this diamond
Prices start from £1,883 GBPSave up to £2,762 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.

B+
1.20ct Round
£1,883 GBP