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Cushion|Lab Grown|IGI

15.18ct F VS2 Cushion Lab Grown Diamond

ID • F/VS2 • IGI LG720591603

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720591603

Diamond specifications and retailer prices

From £2,332 GBP
$3,130 USD
As of November 3, 2026
Save £8,030 GBP (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £10,363 GBP at Adiamor · As of November 2, 2026
View at Adiamor

About this 15.18ct lab-grown cushion diamond

This 15.18ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720591603 or 720591603. Listed at 8 retailers as of November 2, 2026, with prices from £2,332 to £10,363, a £8,030 spread on the same certified stone. Adiamor lists it at £10,363. 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

15.18
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720591603
Dimensions13.90 × 12.82 × 8.84 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.90 mm12.82 mm15.18 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720591603
Side View
Table 62.0%Crown 38.5°Girdle: THK-VTKPavilion 30.8°Culet: NoneDepth 69.0%

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 3
Current: £10,363 GBP|Low: £1,656 GBP|High: £18,987 GBP|Avg: £5,574 GBP|-0.2%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 13£1,656 GBP
Retailer 7£1,881 GBP
Retailer 9£2,329 GBP
Retailer 6£2,332 GBP
Retailer 10£2,757 GBP
Retailer 2£3,116 GBP
Retailer 5£3,595 GBP
Retailer 8£3,626 GBP
Retailer 12£3,888 GBP
Retailer 11£8,121 GBP
Retailer 4£8,307 GBP
Adiamor£10,363 GBP
Retailer 3£18,987 GBP

25 data points across 13 retailers

8 retailers£2,332 GBP to £10,363 GBP

Retailer 1
-
£2,329 GBP
$3,126 USD
Price last confirmed 21 days ago
A
Retailer 2
-
£2,332 GBP
$3,130 USD
View
A
Retailer 3
-
£2,757 GBP
$3,700 USD
View
A
Retailer 4
-
£3,116 GBP
View
A
Retailer 5
-
£3,626 GBP
$4,866 USD
View
B+
Retailer 6
-
£4,862 GBP
$6,525 USD
View
B
Retailer 7
-
£8,121 GBP
$10,898 USD
View
Most Expensive
B
Adiamor
D-77578250 · Nov 2
£10,363 GBP
$13,906 USD
View
7 more retailers have this diamond
Prices start from £2,332 GBPSave up to £8,030 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
15.18ct Cushion
£2,332 GBP