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Round|Lab Grown|IGI

12.03ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG605385395

Shape and cutting style on the report: Round brilliant

Certificate IGI LG605385395

Diamond specifications and retailer prices

From £1,999 GBP
$2,679 USD
As of October 29, 2026
Save £12,584 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £14,583 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 12.03ct lab-grown round diamond

This 12.03ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG605385395 or 605385395. Listed at 16 retailers as of October 29, 2026, with prices from £1,999 to £14,583, a £12,584 spread on the same certified stone. Brilliant Earth lists it at £14,583. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.03
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605385395
Dimensions14.79 × 14.76 × 8.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
14.79 mm14.76 mm12.03 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605385395
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.8%

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 29
Current: £14,583 GBP|Low: £1,872 GBP|High: £15,031 GBP|Avg: £4,119 GBP|-3.0%
Brilliant Earth
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
October 31, 2026
Retailer 12£1,872 GBP
Retailer 15£1,999 GBP
Retailer 10£2,176 GBP
Retailer 3£2,319 GBP
Retailer 13£2,319 GBP
Retailer 9£2,321 GBP
Retailer 6£2,655 GBP
Retailer 8£3,120 GBP
Retailer 14£3,188 GBP
Retailer 11£3,403 GBP
Retailer 5£3,610 GBP
Retailer 2£3,796 GBP
Retailer 4£5,826 GBP
Retailer 7£6,218 GBP
Brilliant Earth£14,583 GBP

39 data points across 15 retailers

16 retailers£1,999 GBP to £14,583 GBP

Retailer 1
-
£1,872 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
£1,999 GBP
$2,679 USD
View
A
Retailer 3
-
£2,176 GBP
$2,915 USD
View
A
Retailer 4
-
£2,319 GBP
$3,107 USD
View
Retailer 5
-
£2,319 GBP
$3,107 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
£2,321 GBP
$3,110 USD
View
A
Retailer 7
-
£2,655 GBP
$3,557 USD
View
A
Retailer 8
-
£3,120 GBP
View
A
Retailer 9
-
£3,188 GBP
$4,271 USD
View
A
Retailer 10
-
£3,403 GBP
$4,560 USD
View
A
Retailer 11
-
£3,610 GBP
$4,837 USD
View
A
Retailer 12
-
£3,796 GBP
€4,844 EUR
View
B+
Retailer 13
-
£5,826 GBP
$7,806 USD
View
B+
Retailer 14
-
£6,218 GBP
$8,331 USD
View
Retailer 15
-
£8,086 GBP
$10,835 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
8498091A · Oct 29
£14,583 GBP
$19,540 USD
View
15 more retailers have this diamond
Prices start from £1,999 GBPSave up to £12,584 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
12.03ct Round
£1,999 GBP