Cushion|Lab Grown|IGI

15.01ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG808639082

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG808639082

Diamond specifications and retailer prices

From £2,203 GBP
HK$23,100 HKD
As of November 1, 2026
Save £9,071 GBP (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £11,274 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 15.01ct lab-grown cushion diamond

This 15.01ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG808639082 or 808639082. Listed at 9 retailers as of October 31, 2026, with prices from £2,203 to £11,274, a £9,071 spread on the same certified stone. Adiamor lists it at £11,274. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

15.01
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.6°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808639082
Dimensions14.21 × 13.82 × 8.85 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.21 mm13.82 mm15.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG808639082
Side View
Table 65.0%Crown 35.6°Girdle: MED-ETKPavilion 36°Culet: NoneDepth 64.0%

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: Nov 1
Current: £11,274 GBP|Low: £2,203 GBP|High: £16,849 GBP|Avg: £5,267 GBP|-0.1%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3£2,203 GBP
Retailer 8£2,379 GBP
Retailer 7£2,659 GBP
Retailer 4£2,743 GBP
Retailer 2£2,872 GBP
Retailer 9£3,034 GBP
Retailer 6£4,669 GBP
Retailer 5£8,659 GBP
Adiamor£11,274 GBP

39 data points across 9 retailers

9 retailers£2,203 GBP to £11,274 GBP

A
Cheapest Retailer
-
£2,203 GBP
HK$23,100 HKD
Retailer 2
-
£2,379 GBP
$3,192 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£2,659 GBP
View
A
Retailer 4
-
£2,743 GBP
$3,681 USD
View
A
Retailer 5
-
£2,872 GBP
€3,671 EUR
View
Retailer 6
-
£3,034 GBP
$4,071 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£4,669 GBP
$6,265 USD
View
B
Retailer 8
-
£8,659 GBP
$11,620 USD
View
Most Expensive
B
Adiamor
D-80328756 · Oct 31
£11,274 GBP
$15,129 USD
View
8 more retailers have this diamond
Prices start from £2,203 GBPSave up to £9,071 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
15.01ct Cushion
£2,203 GBP