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15.49ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG731504980

Shape and cutting style on the report: Round brilliant

Certificate IGI LG731504980

Diamond specifications and retailer prices

From £5,940 GBP
$7,959 USD
As of October 31, 2026
Save £16,681 GBP (74%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £22,621 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.49ct lab-grown round diamond

This 15.49ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG731504980 or 731504980. Listed at 18 retailers as of October 31, 2026, with prices from £5,940 to £22,621, a £16,681 spread on the same certified stone. Brilliant Earth lists it at £22,621. 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

15.49
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731504980
Dimensions16.20 × 16.14 × 9.65 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
16.20 mm16.14 mm15.49 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731504980
Side View
Table 61.0%Crown 33.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 59.7%

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 31
Current: £22,621 GBP|Low: £5,303 GBP|High: £23,554 GBP|Avg: £10,921 GBP|-4.0%
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
November 1, 2026
Retailer 4£5,303 GBP
Retailer 13£5,516 GBP
Retailer 7£5,940 GBP
Retailer 5£6,152 GBP
Retailer 12£6,604 GBP
Retailer 11£6,814 GBP
Retailer 6£7,304 GBP
Retailer 2£7,609 GBP
Retailer 9£9,202 GBP
Retailer 8£11,679 GBP
Retailer 10£11,756 GBP
Retailer 14£12,097 GBP
Retailer 3£16,130 GBP
Retailer 15£21,042 GBP
Brilliant Earth£22,621 GBP

40 data points across 15 retailers

18 retailers£5,940 GBP to £22,621 GBP

Retailer 1
-
£5,303 GBP
$7,106 USD
Price last confirmed 17 days ago
Retailer 2
-
£5,516 GBP
$7,391 USD
View
Price last confirmed 18 days ago
Retailer 3
-
£5,516 GBP
$7,391 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£5,940 GBP
$7,959 USD
View
Final sale: no returns
Retailer 5
-
£6,152 GBP
$8,243 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£6,152 GBP
$8,243 USD
View
B+
Retailer 7
-
£6,604 GBP
$8,848 USD
View
B+
Retailer 8
-
£6,814 GBP
$9,130 USD
View
Price last confirmed 7 days ago
Retailer 9
-
£7,304 GBP
$9,786 USD
View
Price last confirmed 20 days ago
Retailer 10
-
£7,304 GBP
$9,786 USD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
£7,609 GBP
View
B
Retailer 12
-
£9,202 GBP
$12,330 USD
View
B
Retailer 13
-
£11,679 GBP
€14,904 EUR
View
Retailer 14
-
£11,756 GBP
A$24,234 AUD
View
Price last confirmed 9 days ago
B
Retailer 15
-
£12,097 GBP
$16,208 USD
View
B
Retailer 16
-
£16,130 GBP
$21,612 USD
View
B
Retailer 17
-
£21,042 GBP
$28,194 USD
View
Most Expensive
B
Brilliant Earth
15734720A · Oct 31
£22,621 GBP
$30,310 USD
View
17 more retailers have this diamond
Prices start from £5,940 GBPSave up to £16,681 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+
15.49ct Round
£5,940 GBP