Round|Natural|GIA

1.20ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2235826287

Certificate GIA 2235826287

Diamond specifications and retailer prices

From £2,632 GBP
$3,526 USD
As of October 30, 2026
Save £3,120 GBP (54%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: £5,751 GBP at NZ Jewellers · As of October 20, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235826287. Listed at 32 retailers as of October 30, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2235826287
Dimensions6.76 × 6.79 × 4.23 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.76 mm6.79 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235826287
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,736 GBP|Low: £2,732 GBP|High: £5,321 GBP|Avg: £3,702 GBP|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11£2,732 GBP
Retailer 2£2,760 GBP
Retailer 4£2,851 GBP
Retailer 9£2,991 GBP
Retailer 12£3,165 GBP
Retailer 5£3,356 GBP
Retailer 3£3,521 GBP
Retailer 10£3,720 GBP
Retailer 1£3,736 GBP
Retailer 8£4,020 GBP
Retailer 6£5,286 GBP
Retailer 7£5,298 GBP

40 data points across 12 retailers

32 retailers£2,632 GBP to £5,751 GBP

B+
Cheapest Retailer
-
£2,632 GBP
$3,526 USD
B+
Retailer 2
-
£2,732 GBP
$3,660 USD
View
B+
Retailer 3
-
£2,760 GBP
$3,698 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,851 GBP
$3,820 USD
View
B+
Retailer 5
-
£2,983 GBP
$3,997 USD
View
B+
Retailer 6
-
£2,991 GBP
$4,007 USD
View
Retailer 7
-
£2,991 GBP
$4,007 USD
View
Price last confirmed 43 days ago
Retailer 8
-
£2,991 GBP
$4,007 USD
View
Price last confirmed 22 days ago
Retailer 9
-
£2,991 GBP
$4,007 USD
View
Price last confirmed 15 days ago
Retailer 10
-
£2,991 GBP
$4,007 USD
View
Price last confirmed 31 days ago
Retailer 11
-
£2,991 GBP
$4,007 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£3,165 GBP
$4,241 USD
View
B
Retailer 13
-
£3,247 GBP
$4,350 USD
View
B
Retailer 14
-
£3,247 GBP
$4,350 USD
View
B+
Retailer 15
-
£3,351 GBP
$4,490 USD
View
B+
Retailer 16
-
£3,356 GBP
View
Retailer 17
-
£3,451 GBP
$4,624 USD
View
Price last confirmed 39 days ago
Retailer 18
-
£3,451 GBP
$4,624 USD
View
Price last confirmed 22 days ago
Retailer 19
-
£3,451 GBP
$4,624 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
-
£3,451 GBP
$4,624 USD
View
B+
Retailer 21
-
£3,471 GBP
$4,651 USD
View
Retailer 22
-
£3,521 GBP
A$7,259 AUD
View
Price last confirmed 21 days ago
B+
Retailer 23
-
£3,720 GBP
View
Retailer 24
-
£3,735 GBP
$5,004 USD
View
Price last confirmed 16 days ago
B+
Retailer 25
-
£3,736 GBP
€4,768 EUR
View
B
Retailer 26
-
£4,020 GBP
ZAR 87,016 ZAR
View
B
Retailer 27
-
£5,286 GBP
View
B
Retailer 28
-
£5,298 GBP
View
Retailer 29
-
£5,751 GBP
$7,706 USD
View
Price last confirmed 41 days ago
B
Retailer 30
-
£5,751 GBP
$7,706 USD
View
Retailer 31
-
£5,751 GBP
$7,706 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
6370469a-406f-4336-9907-0988911fcd8d · Oct 20
£5,751 GBP
$7,706 USD
View
Price last confirmed 10 days ago
31 more retailers have this diamond
Prices start from £2,632 GBPSave up to £3,120 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.

B+
1.20ct Round
£2,632 GBP