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1.20ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6545460107

Certificate GIA 6545460107

Diamond specifications and retailer prices

From £1,841 GBP
HK$19,300 HKD
As of November 1, 2026
Save £2,725 GBP (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,566 GBP at Queensmith · As of October 28, 2026
View at Queensmith

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 6545460107. Listed at 18 retailers as of October 28, 2026, with prices from £1,841 to £4,566, a £2,725 spread on the same certified stone. Queensmith lists it at £4,566. 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 angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6545460107
Dimensions6.85 × 6.82 × 4.22 mm
L/W Ratio1.00
Top View
6.85 mm6.82 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545460107
Side View
Table 55.0%Crown 32°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 61.8%

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: Nov 1
Current: £4,566 GBP|Low: £1,822 GBP|High: £4,581 GBP|Avg: £2,753 GBP|+2.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6£1,841 GBP
Retailer 2£1,920 GBP
Retailer 7£2,207 GBP
Retailer 9£2,230 GBP
Retailer 8£2,293 GBP
Retailer 3£2,488 GBP
Retailer 4£2,814 GBP
Retailer 5£4,039 GBP
Queensmith£4,566 GBP

35 data points across 9 retailers

18 retailers£1,841 GBP to £4,566 GBP

A
Cheapest Retailer
-
£1,841 GBP
HK$19,300 HKD
A
Retailer 2
-
£1,920 GBP
₹245,396 INR
View
A
Retailer 3
-
£2,207 GBP
$2,961 USD
View
A
Retailer 4
-
£2,230 GBP
$2,992 USD
View
Final sale: no returns
A
Retailer 5
-
£2,257 GBP
$3,029 USD
View
A
Retailer 6
-
£2,293 GBP
SGD 4,158 SGD
View
Retailer 7
-
£2,415 GBP
$3,241 USD
View
Price last confirmed 34 days ago
Retailer 8
-
£2,415 GBP
$3,241 USD
View
Price last confirmed 24 days ago
Retailer 9
-
£2,415 GBP
$3,241 USD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
£2,488 GBP
View
Retailer 11
-
£2,508 GBP
$3,366 USD
View
Price last confirmed 34 days ago
B+
Retailer 12
-
£2,522 GBP
$3,385 USD
View
B+
Retailer 13
-
£2,558 GBP
SGD 4,638 SGD
View
Retailer 14
-
£2,787 GBP
$3,740 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
£2,814 GBP
€3,597 EUR
View
B
Retailer 16
-
£4,039 GBP
View
Retailer 17
-
£4,208 GBP
$5,647 USD
View
Price last confirmed 35 days ago
Most Expensive
B
Queensmith
6545460107 · Oct 28
£4,566 GBP
View
17 more retailers have this diamond
Prices start from £1,841 GBPSave up to £2,725 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
£1,841 GBP