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Round|Natural|IGI

1.20ct J IF Round Natural Diamond

EX • J/IF • IGI 717591807

Shape and cutting style on the report: Round brilliant

Certificate IGI 717591807

Diamond specifications and retailer prices

From £2,000 GBP
$2,680 USD
As of October 26, 2026
Save £1,740 GBP (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,669 GBP at NZ Jewellers · As of October 23, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 717591807. Listed at 19 retailers as of October 25, 2026, with a 87% 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

1.20
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 717591807
Dimensions6.72 × 6.68 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.72 mm6.68 mm1.20 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 717591807
Side View
Table 58.0%Crown 34.8°Girdle: MediumPavilion 41.7°Culet: NoneDepth 63.6%

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 26
Current: £2,719 GBP|Low: £1,764 GBP|High: £3,780 GBP|Avg: £2,419 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 26, 2026
Retailer 9£1,765 GBP
Retailer 8£2,000 GBP
Retailer 5£2,003 GBP
Retailer 11£2,030 GBP
Retailer 3£2,061 GBP
Retailer 2£2,233 GBP
Retailer 6£2,366 GBP
Retailer 10£2,588 GBP
Retailer 4£2,603 GBP
Retailer 1£2,719 GBP
Retailer 7£3,740 GBP

29 data points across 11 retailers

19 retailers£2,000 GBP to £3,740 GBP

Retailer 1
-
£1,765 GBP
₹225,262 INR
Price last confirmed 12 days ago
A
Retailer 2
-
£2,000 GBP
$2,680 USD
View
A
Retailer 3
-
£2,000 GBP
$2,680 USD
View
A
Retailer 4
-
£2,003 GBP
View
A
Retailer 5
-
£2,030 GBP
$2,720 USD
View
A
Retailer 6
-
£2,123 GBP
$2,845 USD
View
A
Retailer 7
-
£2,233 GBP
$2,992 USD
View
Retailer 8
-
£2,233 GBP
$2,992 USD
View
Price last confirmed 24 days ago
A
Retailer 9
-
£2,233 GBP
$2,992 USD
View
Retailer 10
-
£2,319 GBP
$3,107 USD
View
Price last confirmed 33 days ago
A
Retailer 11
-
£2,366 GBP
View
Retailer 12
-
£2,577 GBP
$3,453 USD
View
Price last confirmed 23 days ago
Retailer 13
-
£2,577 GBP
$3,453 USD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£2,588 GBP
View
B+
Retailer 15
-
£2,603 GBP
€3,322 EUR
View
B+
Retailer 16
-
£2,719 GBP
ZAR 58,865 ZAR
View
B
Retailer 17
-
£3,740 GBP
View
Retailer 18
-
£4,669 GBP
$6,256 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
6d215403-b980-493e-ac6e-13837c2962e8 · Oct 23
£4,669 GBP
$6,256 USD
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £2,000 GBPSave up to £1,740 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
£2,000 GBP