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Cushion|Lab Grown|IGI

15.05ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG782617892

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG782617892

Diamond specifications and retailer prices

From £3,329 GBP
CA$6,195 CAD
As of October 30, 2026
Save £18,501 GBP (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £21,830 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 15.05ct lab-grown cushion diamond

This 15.05ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782617892 or 782617892. Listed at 12 retailers as of October 30, 2026, with prices from £3,329 to £21,830, a £18,501 spread on the same certified stone. Do Amore Diamonds lists it at £21,830. 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

15.05
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782617892
Dimensions18.77 × 12.38 × 8.16 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.77 mm12.38 mm15.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782617892
Side View
Table 51.0%Crown 34.4°Girdle: MED-THKPavilion 31.1°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £21,830 GBP|Low: £2,007 GBP|High: £22,920 GBP|Avg: £8,536 GBP|-4.8%
Do Amore Diamonds
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 1, 2026
Retailer 5£2,007 GBP
Retailer 10£3,329 GBP
Retailer 4£3,945 GBP
Retailer 8£3,982 GBP
Retailer 2£5,278 GBP
Retailer 3£5,728 GBP
Retailer 7£6,312 GBP
Retailer 13£8,728 GBP
Retailer 6£9,248 GBP
Retailer 12£10,379 GBP
Retailer 9£10,649 GBP
Retailer 11£18,870 GBP
Do Amore Diamonds£21,830 GBP

25 data points across 13 retailers

12 retailers£3,329 GBP to £21,830 GBP

A
Cheapest Retailer
-
£3,329 GBP
CA$6,195 CAD
Retailer 2
-
£3,945 GBP
$5,286 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
£3,982 GBP
$5,335 USD
View
B+
Retailer 4
-
£5,278 GBP
$7,072 USD
View
Retailer 5
-
£5,728 GBP
$7,676 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£6,312 GBP
€8,055 EUR
View
Retailer 7
-
£8,728 GBP
$11,694 USD
View
Price last confirmed 9 days ago
B
Retailer 8
-
£9,248 GBP
A$19,063 AUD
View
B
Retailer 9
-
£10,379 GBP
$13,906 USD
View
B
Retailer 10
-
£10,649 GBP
$14,269 USD
View
B
Retailer 11
-
£18,870 GBP
$25,284 USD
View
Most Expensive
B
Do Amore Diamonds
27-F882A2C8D · Nov 2
£21,830 GBP
$29,250 USD
View
11 more retailers have this diamond
Prices start from £3,329 GBPSave up to £18,501 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
15.05ct Cushion
£3,329 GBP