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Round|Lab Grown|IGI

12.07ct G SI1 Round Lab Grown Diamond

ID • G/SI1

Diamond specifications and retailer prices

From £2,297 GBP
$3,078 USD
As of November 1, 2026
Save £8,513 GBP (79%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £10,810 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 12.07ct lab-grown round diamond

This 12.07ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 4 retailers as of October 30, 2026, with prices from £2,297 to £10,810, a £8,513 spread on the same certified stone. The Diamond Guys lists it at £10,810. 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

12.07
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions14.89 × 14.96 × 8.87 mm
L/W Ratio1.00
Top View
14.89 mm14.96 mm12.07 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 60.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 59.4%

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: Nov 1
Current: £3,065 GBP|Low: £1,830 GBP|High: £10,810 GBP|Avg: £4,810 GBP|+2.3%
Retailer 1
Retailer 2
Retailer 3
The Diamond Guys
October 30, 2026
Retailer 2£2,297 GBP
Retailer 1£3,065 GBP
Retailer 3£4,165 GBP
The Diamond Guys£10,810 GBP

6 data points across 4 retailers

4 retailers£2,297 GBP to £10,810 GBP

B+
Cheapest Retailer
-
£2,297 GBP
$3,078 USD
B
Retailer 2
-
£3,065 GBP
CA$5,704 CAD
View
B
Retailer 3
-
£4,165 GBP
$5,580 USD
View
Most Expensive
C
The Diamond Guys
1992504680 · Oct 30
£10,810 GBP
$14,484 USD
View
3 more retailers have this diamond
Prices start from £2,297 GBPSave up to £8,513 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+
12.07ct Round
£2,297 GBP