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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1568201582

Certificate GIA 1568201582

Diamond specifications and retailer prices

From £1,337 GBP
HK$14,000 HKD
As of October 27, 2026
Save £2,404 GBP (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,741 GBP at NZ Jewellers · As of October 27, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1568201582. Listed at 22 retailers as of October 27, 2026, with prices from £1,337 to £3,741, a £2,404 spread on the same certified stone. NZ Jewellers lists it at £3,741. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1568201582
Dimensions6.84 × 6.78 × 4.19 mm
L/W Ratio1.01
Top View
6.84 mm6.78 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1568201582
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £3,741 GBP|Low: £1,337 GBP|High: £3,876 GBP|Avg: £1,979 GBP|-3.5%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 28, 2026
Retailer 3£1,337 GBP
Retailer 17£1,370 GBP
Retailer 12£1,460 GBP
Retailer 20£1,578 GBP
Retailer 6£1,617 GBP
Retailer 13£1,703 GBP
Retailer 7£1,737 GBP
Retailer 2£1,784 GBP
Retailer 10£1,790 GBP
Retailer 21£1,790 GBP
Retailer 14£1,872 GBP
Retailer 9£1,879 GBP
Retailer 15£1,889 GBP
Retailer 8£1,894 GBP
Retailer 4£1,952 GBP
Retailer 11£2,065 GBP
Retailer 18£2,119 GBP
Retailer 16£2,179 GBP
Retailer 5£2,613 GBP
Retailer 19£3,139 GBP
NZ Jewellers£3,741 GBP

24 data points across 21 retailers

22 retailers£1,337 GBP to £3,741 GBP

A
Cheapest Retailer
-
£1,337 GBP
HK$14,000 HKD
A
Retailer 2
-
£1,370 GBP
₹174,768 INR
View
A
Retailer 3
-
£1,460 GBP
₹186,361 INR
View
A
Retailer 4
-
£1,578 GBP
$2,115 USD
View
A
Retailer 5
-
£1,617 GBP
$2,166 USD
View
B+
Retailer 6
-
£1,703 GBP
View
B+
Retailer 7
-
£1,737 GBP
$2,327 USD
View
B+
Retailer 8
-
£1,784 GBP
$2,390 USD
View
B+
Retailer 9
-
£1,790 GBP
$2,398 USD
View
B+
Retailer 10
-
£1,790 GBP
$2,398 USD
View
B+
Retailer 11
-
£1,872 GBP
$2,508 USD
View
B+
Retailer 12
-
£1,879 GBP
SGD 3,402 SGD
View
B+
Retailer 13
-
£1,889 GBP
View
B+
Retailer 14
-
£1,894 GBP
$2,538 USD
View
B+
Retailer 15
-
£1,952 GBP
$2,615 USD
View
B+
Retailer 16
-
£2,065 GBP
$2,767 USD
View
B+
Retailer 17
-
£2,119 GBP
€2,704 EUR
View
B
Retailer 18
-
£2,179 GBP
ZAR 47,167 ZAR
View
Retailer 19
-
£2,291 GBP
A$4,723 AUD
View
Price last confirmed 27 days ago
B
Retailer 20
-
£2,613 GBP
$3,501 USD
View
B
Retailer 21
-
£3,139 GBP
View
Most Expensive
B
NZ Jewellers
e3eb7d6e-4a29-4a9b-8dac-53873e83a377 · Oct 27
£3,741 GBP
$5,013 USD
View
21 more retailers have this diamond
Prices start from £1,337 GBPSave up to £2,404 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
£1,337 GBP