CaratHunter
Plans
Round|Natural|GIA

1.20ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1559756383

Certificate GIA 1559756383

Diamond specifications and retailer prices

From £1,762 GBP
SGD 3,190 SGD
As of October 31, 2026
Save £1,852 GBP (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,614 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559756383. Listed at 12 retailers as of October 26, 2026, with prices from £1,762 to £3,614, a £1,852 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,614. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559756383
Dimensions6.71 × 4.25 × 4.25 mm
L/W Ratio1.58
Culet sizeNone
Top View
6.71 mm4.25 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559756383
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.0%

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 31
Current: £2,683 GBP|Low: £1,762 GBP|High: £3,831 GBP|Avg: £2,694 GBP|-3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 29, 2026
Retailer 7£1,762 GBP
Retailer 6£2,131 GBP
Retailer 4£2,157 GBP
Retailer 3£2,337 GBP
Retailer 10£2,409 GBP
Retailer 8£2,433 GBP
Retailer 9£2,644 GBP
Retailer 1£2,683 GBP
Retailer 5£2,739 GBP
Retailer 2£3,373 GBP
Wholesale Diamonds Direct£3,614 GBP

43 data points across 11 retailers

12 retailers£1,762 GBP to £3,614 GBP

A
Cheapest Retailer
-
£1,762 GBP
SGD 3,190 SGD
A
Retailer 2
-
£2,131 GBP
$2,855 USD
View
A
Retailer 3
-
£2,157 GBP
$2,890 USD
View
A
Retailer 4
-
£2,337 GBP
View
A
Retailer 5
-
£2,409 GBP
SGD 4,362 SGD
View
A
Retailer 6
-
£2,433 GBP
$3,260 USD
View
B+
Retailer 7
-
£2,644 GBP
$3,542 USD
View
B+
Retailer 8
-
£2,683 GBP
€3,424 EUR
View
B+
Retailer 9
-
£2,739 GBP
View
B+
Retailer 10
-
£2,982 GBP
$3,996 USD
View
B+
Retailer 11
-
£3,373 GBP
$4,520 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
262900585 · Oct 26
£3,614 GBP
$4,842 USD
View
11 more retailers have this diamond
Prices start from £1,762 GBPSave up to £1,852 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
£1,762 GBP