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Round|Natural|GIA

1.20ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6551882557

Certificate GIA 6551882557

Diamond specifications and retailer prices

From £1,516 GBP
SGD 2,745 SGD
As of October 31, 2026
Save £1,595 GBP (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,112 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551882557. Listed at 11 retailers as of October 26, 2026, with prices from £1,516 to £3,112, a £1,595 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,112. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551882557
Dimensions6.76 × 6.79 × 4.22 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.76 mm6.79 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551882557
Side View
Table 54.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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: £2,043 GBP|Low: £1,516 GBP|High: £3,328 GBP|Avg: £2,268 GBP|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 31, 2026
Retailer 7£1,516 GBP
Retailer 4£1,872 GBP
Retailer 6£1,904 GBP
Retailer 1£2,043 GBP
Retailer 2£2,073 GBP
Retailer 9£2,112 GBP
Retailer 8£2,234 GBP
Retailer 10£2,321 GBP
Retailer 5£2,417 GBP
Retailer 3£2,462 GBP
Wholesale Diamonds Direct£3,112 GBP

37 data points across 11 retailers

11 retailers£1,516 GBP to £3,112 GBP

A
Cheapest Retailer
-
£1,516 GBP
SGD 2,745 SGD
A
Retailer 2
-
£1,872 GBP
$2,508 USD
View
A
Retailer 3
-
£1,904 GBP
$2,551 USD
View
A
Retailer 4
-
£2,043 GBP
View
A
Retailer 5
-
£2,073 GBP
SGD 3,754 SGD
View
A
Retailer 6
-
£2,112 GBP
$2,830 USD
View
A
Retailer 7
-
£2,234 GBP
$2,993 USD
View
A
Retailer 8
-
£2,321 GBP
$3,110 USD
View
A
Retailer 9
-
£2,417 GBP
View
B+
Retailer 10
-
£2,462 GBP
€3,142 EUR
View
Most Expensive
B+
Wholesale Diamonds Direct
271989813 · Oct 26
£3,112 GBP
$4,169 USD
View
10 more retailers have this diamond
Prices start from £1,516 GBPSave up to £1,595 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
£1,516 GBP