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1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7408014303

Shape and cutting style on the report: Round brilliant

Certificate GIA 7408014303

Diamond specifications and retailer prices

From £2,665 GBP
HK$27,900 HKD
As of October 31, 2026
Save £5,038 GBP (65%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £7,703 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 7408014303. Listed at 18 retailers as of October 31, 2026, with prices from £2,665 to £7,703, a £5,038 spread on the same certified stone. Diamond Quarter lists it at £7,703. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7408014303
Dimensions6.77 × 6.73 × 4.25 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.77 mm6.73 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7408014303
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: £4,419 GBP|Low: £2,637 GBP|High: £6,263 GBP|Avg: £3,838 GBP|-2.3%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 11£2,665 GBP
Retailer 10£2,703 GBP
Retailer 7£3,135 GBP
Retailer 8£3,318 GBP
Retailer 16£3,388 GBP
Retailer 6£3,389 GBP
Retailer 14£3,469 GBP
Retailer 12£3,552 GBP
Retailer 3£3,595 GBP
Retailer 4£3,595 GBP
Retailer 5£3,707 GBP
Retailer 9£3,755 GBP
Retailer 13£4,069 GBP
Retailer 2£4,148 GBP
Retailer 1£4,419 GBP
Retailer 15£5,756 GBP
Retailer 17£6,263 GBP

23 data points across 17 retailers

18 retailers£2,665 GBP to £7,703 GBP

A
Cheapest Retailer
-
£2,665 GBP
HK$27,900 HKD
A
Retailer 2
-
£2,703 GBP
₹344,975 INR
View
B+
Retailer 3
-
£3,135 GBP
$4,201 USD
View
B+
Retailer 4
-
£3,318 GBP
$4,446 USD
View
Final sale: no returns
B+
Retailer 5
-
£3,388 GBP
$4,540 USD
View
B+
Retailer 6
-
£3,389 GBP
SGD 6,137 SGD
View
B+
Retailer 7
-
£3,469 GBP
View
B+
Retailer 8
-
£3,552 GBP
View
B+
Retailer 9
-
£3,595 GBP
$4,817 USD
View
B+
Retailer 10
-
£3,595 GBP
$4,817 USD
View
B+
Retailer 11
-
£3,707 GBP
$4,967 USD
View
Retailer 12
-
£3,755 GBP
A$7,740 AUD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
£4,069 GBP
€5,192 EUR
View
B+
Retailer 14
-
£4,148 GBP
$5,558 USD
View
B+
Retailer 15
-
£4,419 GBP
ZAR 95,648 ZAR
View
B
Retailer 16
-
£5,756 GBP
View
B
Retailer 17
-
£6,263 GBP
$8,392 USD
View
Most Expensive
B
Diamond Quarter
1.2SI1D74035DEBN · Oct 31
£7,703 GBP
View
17 more retailers have this diamond
Prices start from £2,665 GBPSave up to £5,038 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
£2,665 GBP