Round|Natural|GIA

1.20ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6515997341

Certificate GIA 6515997341

Diamond specifications and retailer prices

From £2,271 GBP
$3,043 USD
As of October 30, 2026
Save £844 GBP (27%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,141 GBP at NZ Jewellers · As of October 20, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6515997341. Listed at 23 retailers as of October 30, 2026, with a 37% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6515997341
Dimensions6.82 × 6.78 × 4.19 mm
L/W Ratio1.01
Star length50%
Top View
6.82 mm6.78 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515997341
Side View
Table 58.0%Crown 34.5°Girdle: Sli. ThickPavilion 41.4°Culet: NoneDepth 61.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £4,141 GBP|Low: £1,829 GBP|High: £4,141 GBP|Avg: £2,537 GBP
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
October 30, 2026
Retailer 5£1,885 GBP
Retailer 6£1,942 GBP
Retailer 9£1,959 GBP
Retailer 3£2,043 GBP
Retailer 11£2,153 GBP
Retailer 12£2,236 GBP
Retailer 13£2,271 GBP
Retailer 4£2,289 GBP
Retailer 7£2,313 GBP
Retailer 19£2,341 GBP
Retailer 8£2,357 GBP
Retailer 16£2,612 GBP
Retailer 18£2,617 GBP
Retailer 20£2,626 GBP
Retailer 2£2,896 GBP
Retailer 14£2,896 GBP
Retailer 17£2,993 GBP
Retailer 15£3,115 GBP
Retailer 10£3,996 GBP
NZ Jewellers£4,141 GBP

32 data points across 20 retailers

23 retailers£2,271 GBP to £3,115 GBP

Retailer 1
-
£1,942 GBP
$2,602 USD
Price last confirmed 9 days ago
Retailer 2
-
£1,959 GBP
$2,625 USD
View
Price last confirmed 9 days ago
Retailer 3
-
£1,967 GBP
$2,635 USD
View
Price last confirmed 36 days ago
Retailer 4
-
£2,043 GBP
$2,737 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£2,153 GBP
$2,885 USD
View
Price last confirmed 43 days ago
Retailer 6
-
£2,153 GBP
$2,885 USD
View
Price last confirmed 14 days ago
Retailer 7
-
£2,236 GBP
$2,996 USD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
£2,271 GBP
$3,043 USD
View
Retailer 9
-
£2,289 GBP
$3,067 USD
View
Price last confirmed 8 days ago
Retailer 10
-
£2,313 GBP
$3,099 USD
View
Price last confirmed 9 days ago
Retailer 11
-
£2,341 GBP
View
Price last confirmed 7 days ago
Retailer 12
-
£2,357 GBP
$3,158 USD
View
Price last confirmed 9 days ago
Retailer 13
-
£2,485 GBP
$3,329 USD
View
Price last confirmed 43 days ago
B+
Retailer 14
-
£2,612 GBP
View
Retailer 15
-
£2,617 GBP
$3,507 USD
View
Price last confirmed 7 days ago
Retailer 16
-
£2,626 GBP
View
Price last confirmed 7 days ago
B
Retailer 17
-
£2,896 GBP
$3,880 USD
View
B
Retailer 18
-
£2,896 GBP
$3,880 USD
View
B
Retailer 19
-
£2,993 GBP
$4,010 USD
View
B
Retailer 20
-
£3,115 GBP
€3,975 EUR
View
Retailer 21
-
£3,996 GBP
View
Price last confirmed 9 days ago
Retailer 22
-
£4,141 GBP
$5,548 USD
View
Price last confirmed 42 days ago
Most Expensive
NZ Jewellers
538015a3-d15f-4a8d-b96d-260a1723b8b1 · Oct 20
£4,141 GBP
$5,548 USD
View
Price last confirmed 10 days ago
22 more retailers have this diamond
Prices start from £2,271 GBPSave up to £844 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
£2,271 GBP