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Round|Natural|GIA

1.20ct J IF Round Natural Diamond

EX • J/IF • GIA 3435538433

Certificate GIA 3435538433

Diamond specifications and retailer prices

From £2,503 GBP
$3,354 USD
As of October 30, 2026
Save £2,426 GBP (49%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £5,107 GBP at NZ Jewellers · As of September 28, 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 3435538433. Listed at 21 retailers as of October 29, 2026, with a 97% 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
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 3435538433
Dimensions6.79 × 6.75 × 4.20 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.79 mm6.75 mm1.20 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3435538433
Side View
Table 62.0%Crown 34°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 62.1%

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: Oct 30
Current: £2,980 GBP|Low: £2,118 GBP|High: £4,962 GBP|Avg: £3,082 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8£2,206 GBP
Retailer 4£2,503 GBP
Retailer 10£2,631 GBP
Retailer 12£2,631 GBP
Retailer 2£2,705 GBP
Retailer 9£2,932 GBP
Retailer 1£2,980 GBP
Retailer 3£3,140 GBP
Retailer 6£3,235 GBP
Retailer 11£3,360 GBP
Retailer 5£3,604 GBP
Retailer 7£4,929 GBP

36 data points across 12 retailers

21 retailers£2,503 GBP to £4,929 GBP

Retailer 1
-
£2,206 GBP
₹281,548 INR
Price last confirmed 8 days ago
A
Retailer 2
-
£2,503 GBP
$3,354 USD
View
B+
Retailer 3
-
£2,580 GBP
$3,457 USD
View
B+
Retailer 4
-
£2,631 GBP
$3,525 USD
View
B+
Retailer 5
-
£2,631 GBP
$3,525 USD
View
B+
Retailer 6
-
£2,705 GBP
$3,625 USD
View
Final sale: no returns
B+
Retailer 7
-
£2,799 GBP
$3,750 USD
View
B+
Retailer 8
-
£2,932 GBP
$3,928 USD
View
Retailer 9
-
£2,932 GBP
$3,928 USD
View
Price last confirmed 31 days ago
B+
Retailer 10
-
£2,932 GBP
$3,928 USD
View
Retailer 11
-
£2,932 GBP
$3,928 USD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
£2,980 GBP
View
Retailer 13
-
£3,140 GBP
A$6,473 AUD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
£3,144 GBP
$4,213 USD
View
B+
Retailer 15
-
£3,235 GBP
€4,128 EUR
View
B+
Retailer 16
-
£3,360 GBP
View
Retailer 17
-
£3,382 GBP
$4,532 USD
View
Price last confirmed 34 days ago
B+
Retailer 18
-
£3,604 GBP
ZAR 78,002 ZAR
View
B
Retailer 19
-
£4,929 GBP
View
Retailer 20
-
£5,107 GBP
$6,843 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
7f1e5df0-464a-43d4-9e8e-0b85559347d1 · Sep 28
£5,107 GBP
$6,843 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from £2,503 GBPSave up to £2,426 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
£2,503 GBP