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Oval|Lab Grown|IGI

15.00ct F VS1 Oval Lab Grown Diamond

ID • F/VS1 • IGI LG786668458

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG786668458

Diamond specifications and retailer prices

From £1,930 GBP
As of October 27, 2026
Save £9,612 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £11,542 GBP at With Clarity · As of November 1, 2026
View at With Clarity

About this 15ct lab-grown oval diamond

This 15ct lab-grown oval 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 LG786668458 or 786668458. Listed at 22 retailers as of October 27, 2026, with prices from £1,930 to £11,542, a £9,612 spread on the same certified stone. With Clarity lists it at £11,542. 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

15.00
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786668458
Dimensions19.57 × 14.04 × 8.29 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.57 mm14.04 mm15.00 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786668458
Side View
Table 63.0%Crown 34.3°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 59.0%

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: Oct 27
Current: £8,495 GBP|Low: £1,927 GBP|High: £14,449 GBP|Avg: £5,210 GBP|-5.2%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
With Clarity
November 1, 2026
Retailer 21£1,930 GBP
Retailer 2£2,065 GBP
Retailer 11£2,284 GBP
Retailer 4£2,312 GBP
Retailer 14£2,435 GBP
Retailer 20£2,437 GBP
Retailer 12£2,751 GBP
Retailer 18£3,140 GBP
Retailer 22£3,217 GBP
Retailer 15£3,347 GBP
Retailer 16£3,595 GBP
Retailer 3£3,728 GBP
Retailer 8£3,755 GBP
Retailer 7£4,129 GBP
Retailer 9£4,519 GBP
Retailer 10£4,814 GBP
Retailer 13£6,116 GBP
Retailer 6£6,679 GBP
Retailer 5£8,350 GBP
Retailer 1£8,495 GBP
Retailer 17£10,680 GBP
Retailer 19£11,105 GBP
With Clarity£11,542 GBP

26 data points across 23 retailers

22 retailers£1,930 GBP to £11,542 GBP

A
Cheapest Retailer
-
£1,930 GBP
A
Retailer 2
-
£2,065 GBP
$2,767 USD
View
Retailer 3
-
£2,284 GBP
$3,060 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£2,435 GBP
$3,263 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£2,437 GBP
$3,265 USD
View
A
Retailer 6
-
£2,751 GBP
HK$28,800 HKD
View
A
Retailer 7
-
£3,140 GBP
$4,207 USD
View
A
Retailer 8
-
£3,217 GBP
View
Retailer 9
-
£3,347 GBP
$4,485 USD
View
Price last confirmed 8 days ago
A
Retailer 10
-
£3,595 GBP
€4,587 EUR
View
A
Retailer 11
-
£3,728 GBP
$4,995 USD
View
Retailer 12
-
£3,755 GBP
ZAR 81,276 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£4,129 GBP
View
Retailer 14
-
£4,519 GBP
A$9,315 AUD
View
Price last confirmed 10 days ago
Retailer 15
-
£4,814 GBP
$6,450 USD
View
Price last confirmed 14 days ago
B+
Retailer 16
-
£6,116 GBP
$8,195 USD
View
B
Retailer 17
-
£6,679 GBP
$8,949 USD
View
B
Retailer 18
-
£8,350 GBP
$11,188 USD
View
B
Retailer 19
-
£8,495 GBP
A$17,512 AUD
View
B
Retailer 20
-
£10,680 GBP
$14,310 USD
View
B
Retailer 21
-
£11,105 GBP
$14,880 USD
View
Most Expensive
B
With Clarity
786668458 · Nov 1
£11,542 GBP
$15,465 USD
View
21 more retailers have this diamond
Prices start from £1,930 GBPSave up to £9,612 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
15.00ct Oval
£1,930 GBP