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Radiant|Lab Grown|IGI

15.09ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG691549480

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG691549480

Diamond specifications and retailer prices

From £3,248 GBP
$4,358 USD
As of November 2, 2026
Save £4,639 GBP (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £22,348 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 15.09ct lab-grown radiant diamond

This 15.09ct lab-grown radiant 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 LG691549480 or 691549480. Listed at 12 retailers as of November 1, 2026, with a 143% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

15.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691549480
Dimensions17.89 × 12.07 × 8.02 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.89 mm12.07 mm15.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691549480
Side View
Table 62.0%Crown 41.6°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 66.4%

Caratlytics Score

How it works →
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 2
Current: £22,348 GBP|Low: £2,039 GBP|High: £22,348 GBP|Avg: £8,137 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 1, 2026
Retailer 13£3,248 GBP
Retailer 15£3,637 GBP
Retailer 8£3,803 GBP
Retailer 6£4,152 GBP
Retailer 17£4,602 GBP
Retailer 10£4,613 GBP
Retailer 7£4,817 GBP
Retailer 12£4,903 GBP
Retailer 11£5,409 GBP
Retailer 16£5,479 GBP
Retailer 2£7,887 GBP
Retailer 5£8,557 GBP
Retailer 9£10,385 GBP
Retailer 3£10,741 GBP
Retailer 4£10,907 GBP
Retailer 14£21,312 GBP
Do Amore Diamonds£22,348 GBP

20 data points across 17 retailers

12 retailers£3,248 GBP to £7,887 GBP

A
Cheapest Retailer
-
£3,248 GBP
$4,358 USD
A
Retailer 2
-
£3,404 GBP
$4,568 USD
View
A
Retailer 3
-
£3,637 GBP
$4,881 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,613 GBP
$6,190 USD
View
B+
Retailer 5
-
£4,903 GBP
$6,579 USD
View
B+
Retailer 6
-
£5,197 GBP
$6,974 USD
View
B+
Retailer 7
-
£5,409 GBP
$7,259 USD
View
Retailer 8
-
£5,479 GBP
$7,352 USD
View
Price last confirmed 74 days ago
B
Retailer 9
-
£7,887 GBP
A$16,282 AUD
View
Retailer 10
-
£8,557 GBP
A$17,666 AUD
View
Price last confirmed 121 days ago
Retailer 11
-
£21,312 GBP
$28,600 USD
View
Price under review
Most Expensive
Do Amore Diamonds
27-13173CC6A · Nov 2
£22,348 GBP
$29,990 USD
View
Price under review
11 more retailers have this diamond
Prices start from £3,248 GBPSave up to £4,639 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
15.09ct Radiant
£3,248 GBP