Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7521547893

Certificate GIA 7521547893

Diamond specifications and retailer prices

From £2,143 GBP
$2,872 USD
As of October 30, 2026
Save £2,499 GBP (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,643 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7521547893. Listed at 23 retailers as of October 30, 2026, with prices from £2,143 to £4,643, a £2,499 spread on the same certified stone. NZ Jewellers lists it at £4,643. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7521547893
Dimensions6.77 × 6.82 × 4.22 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Cloud, Feather, Needle
Top View
6.77 mm6.82 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7521547893
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

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: Oct 30
Current: £4,643 GBP|Low: £2,043 GBP|High: £4,643 GBP|Avg: £2,798 GBP
NZ Jewellers
Retailer 2
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Retailer 22
Retailer 23
Retailer 24
October 31, 2026
Retailer 14£2,143 GBP
Retailer 5£2,190 GBP
Retailer 3£2,229 GBP
Retailer 6£2,258 GBP
Retailer 17£2,336 GBP
Retailer 8£2,340 GBP
Retailer 7£2,414 GBP
Retailer 22£2,414 GBP
Retailer 21£2,507 GBP
Retailer 18£2,572 GBP
Retailer 12£2,594 GBP
Retailer 19£2,719 GBP
Retailer 11£2,739 GBP
Retailer 16£2,739 GBP
Retailer 13£2,786 GBP
Retailer 15£2,829 GBP
Retailer 4£2,855 GBP
Retailer 10£2,908 GBP
Retailer 9£3,020 GBP
Retailer 23£3,095 GBP
Retailer 20£3,101 GBP
Retailer 2£3,276 GBP
Retailer 24£4,480 GBP
NZ Jewellers£4,643 GBP

28 data points across 24 retailers

23 retailers£2,143 GBP to £4,643 GBP

A
Cheapest Retailer
-
£2,143 GBP
$2,872 USD
Retailer 2
-
£2,190 GBP
$2,935 USD
View
Price last confirmed 24 days ago
B+
Retailer 3
-
£2,229 GBP
$2,986 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,258 GBP
$3,026 USD
View
B+
Retailer 5
-
£2,340 GBP
$3,135 USD
View
Retailer 6
-
£2,414 GBP
$3,235 USD
View
Price last confirmed 9 days ago
Retailer 7
-
£2,414 GBP
$3,235 USD
View
Price last confirmed 19 days ago
Retailer 8
-
£2,507 GBP
$3,359 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£2,572 GBP
View
B+
Retailer 10
-
£2,594 GBP
$3,476 USD
View
Retailer 11
-
£2,719 GBP
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£2,739 GBP
$3,670 USD
View
B+
Retailer 13
-
£2,739 GBP
$3,670 USD
View
B
Retailer 14
-
£2,786 GBP
$3,733 USD
View
B
Retailer 15
-
£2,829 GBP
$3,790 USD
View
Retailer 16
-
£2,855 GBP
A$5,884 AUD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
£2,908 GBP
$3,897 USD
View
Retailer 18
-
£3,020 GBP
$4,046 USD
View
Price last confirmed 8 days ago
B
Retailer 19
-
£3,095 GBP
View
Retailer 20
-
£3,101 GBP
€3,957 EUR
View
Price last confirmed 9 days ago
B
Retailer 21
-
£3,276 GBP
ZAR 70,907 ZAR
View
Retailer 22
-
£4,480 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
655235fe-fedf-4e3c-8fa2-68ce32aef74c · Oct 30
£4,643 GBP
$6,221 USD
View
22 more retailers have this diamond
Prices start from £2,143 GBPSave up to £2,499 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
£2,143 GBP