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Round|Natural|GIA

1.20ct J IF Round Natural Diamond

EX • J/IF • GIA 5506974655

Certificate GIA 5506974655

Diamond specifications and retailer prices

From £3,132 GBP
$4,197 USD
As of October 30, 2026
Save £2,311 GBP (42%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,922 GBP at NZ Jewellers · As of October 3, 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 GIA 5506974655. Listed at 7 retailers as of October 29, 2026, with a 74% 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5506974655
Dimensions6.73 × 6.77 × 4.21 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.73 mm6.77 mm1.20 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5506974655
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.4%

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: Oct 30
Current: £3,666 GBP|Low: £2,483 GBP|High: £5,479 GBP|Avg: £3,750 GBP|-7.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 5£3,132 GBP
Retailer 4£3,138 GBP
Retailer 6£3,587 GBP
Retailer 1£3,666 GBP
Retailer 3£3,815 GBP
Retailer 2£5,443 GBP

24 data points across 6 retailers

7 retailers£3,132 GBP to £5,443 GBP

B+
Cheapest Retailer
-
£3,132 GBP
$4,197 USD
B+
Retailer 2
-
£3,138 GBP
$4,204 USD
View
Final sale: no returns
B+
Retailer 3
-
£3,587 GBP
$4,807 USD
View
B+
Retailer 4
-
£3,666 GBP
€4,678 EUR
View
B+
Retailer 5
-
£3,815 GBP
View
B
Retailer 6
-
£5,443 GBP
View
Most Expensive
NZ Jewellers
e8e40e7c-45c5-4c03-9845-7e64fea8e68c · Oct 3
£5,922 GBP
$7,935 USD
View
Price last confirmed 29 days ago
6 more retailers have this diamond
Prices start from £3,132 GBPSave up to £2,311 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
£3,132 GBP