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Round|Lab Grown|IGI

15.30ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG791654443

Shape and cutting style on the report: Round brilliant

Certificate IGI LG791654443

Diamond specifications and retailer prices

From £3,043 GBP
$4,077 USD
As of November 1, 2026
Save £15,504 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £18,546 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.3ct lab-grown round diamond

This 15.3ct 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 LG791654443 or 791654443. Listed at 18 retailers as of October 31, 2026, with prices from £3,043 to £18,546, a £15,504 spread on the same certified stone. Brilliant Earth lists it at £18,546. 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

15.30
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791654443
Dimensions16.24 × 16.19 × 9.61 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.24 mm16.19 mm15.30 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791654443
Side View
Table 60.0%Crown 33.6°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 59.3%

Caratlytics Score

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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: Nov 1
Current: £18,546 GBP|Low: £2,802 GBP|High: £19,121 GBP|Avg: £7,026 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
Retailer 16
November 1, 2026
Retailer 13£3,043 GBP
Retailer 11£3,189 GBP
Retailer 8£3,251 GBP
Retailer 5£3,530 GBP
Retailer 10£3,530 GBP
Retailer 3£3,683 GBP
Retailer 6£3,806 GBP
Retailer 12£4,299 GBP
Retailer 4£4,411 GBP
Retailer 2£4,620 GBP
Retailer 7£5,126 GBP
Retailer 9£5,712 GBP
Retailer 14£9,997 GBP
Retailer 15£12,539 GBP
Retailer 16£17,634 GBP
Brilliant Earth£18,546 GBP

38 data points across 16 retailers

18 retailers£3,043 GBP to £18,546 GBP

A
Cheapest Retailer
-
£3,043 GBP
$4,077 USD
A
Retailer 2
-
£3,189 GBP
$4,273 USD
View
Retailer 3
-
£3,251 GBP
$4,356 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
£3,530 GBP
$4,730 USD
View
A
Retailer 5
-
£3,530 GBP
$4,730 USD
View
A
Retailer 6
-
£3,683 GBP
$4,935 USD
View
A
Retailer 7
-
£3,806 GBP
$5,100 USD
View
Final sale: no returns
A
Retailer 8
-
£4,299 GBP
$5,760 USD
View
A
Retailer 9
-
£4,411 GBP
$5,910 USD
View
A
Retailer 10
-
£4,620 GBP
View
A
Retailer 11
-
£5,126 GBP
$6,868 USD
View
B+
Retailer 12
-
£5,712 GBP
€7,289 EUR
View
Retailer 13
-
£6,307 GBP
$8,451 USD
View
Price last confirmed 46 days ago
Retailer 14
-
£6,406 GBP
$8,583 USD
View
Price last confirmed 97 days ago
B
Retailer 15
-
£9,997 GBP
$13,395 USD
View
B
Retailer 16
-
£12,539 GBP
$16,801 USD
View
B
Retailer 17
-
£17,634 GBP
$23,627 USD
View
Most Expensive
B
Brilliant Earth
18785492A · Oct 31
£18,546 GBP
$24,850 USD
View
17 more retailers have this diamond
Prices start from £3,043 GBPSave up to £15,504 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
15.30ct Round
£3,043 GBP