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1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5242057473

Certificate GIA 5242057473

Diamond specifications and retailer prices

From £2,398 GBP
As of November 4, 2026
Save £1,949 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,347 GBP at Wholesale Diamonds Direct · As of November 4, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5242057473. Listed at 14 retailers as of November 4, 2026, with prices from £2,398 to £4,347, a £1,949 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,347. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5242057473
Dimensions6.72 × 6.77 × 4.23 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.72 mm6.77 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5242057473
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,751 GBP|Low: £2,398 GBP|High: £4,656 GBP|Avg: £3,158 GBP|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 6, 2026
Retailer 10£2,398 GBP
Retailer 12£2,418 GBP
Retailer 6£2,456 GBP
Retailer 11£2,563 GBP
Retailer 9£2,586 GBP
Retailer 5£2,617 GBP
Retailer 1£2,751 GBP
Retailer 2£3,057 GBP
Retailer 3£3,100 GBP
Retailer 7£3,176 GBP
Retailer 8£3,241 GBP
Retailer 13£4,043 GBP
Retailer 4£4,298 GBP
Wholesale Diamonds Direct£4,347 GBP

27 data points across 14 retailers

14 retailers£2,398 GBP to £4,347 GBP

A
Cheapest Retailer
-
£2,398 GBP
A
Retailer 2
-
£2,418 GBP
View
A
Retailer 3
-
£2,456 GBP
View
A
Retailer 4
-
£2,563 GBP
View
A
Retailer 5
-
£2,586 GBP
View
A
Retailer 6
-
£2,617 GBP
View
A
Retailer 7
-
£2,751 GBP
View
B+
Retailer 8
-
£3,057 GBP
View
B+
Retailer 9
-
£3,100 GBP
View
B+
Retailer 10
-
£3,176 GBP
View
B+
Retailer 11
-
£3,241 GBP
View
B+
Retailer 12
-
£4,043 GBP
View
B+
Retailer 13
-
£4,298 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
331200828 · Nov 4
£4,347 GBP
$5,851 USD
View
13 more retailers have this diamond
Prices start from £2,398 GBPSave up to £1,949 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
£2,398 GBP