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Oval|Lab Grown|IGI

20.70ct F VS2 Oval Lab Grown Diamond

ID • F/VS2 • IGI LG716504125

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG716504125

Diamond specifications and retailer prices

From £7,825 GBP
$10,484 USD
As of November 1, 2026
Save £19,785 GBP (72%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £27,610 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.7ct lab-grown oval diamond

This 20.7ct lab-grown oval 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 LG716504125 or 716504125. Listed at 12 retailers as of October 31, 2026, with prices from £7,825 to £27,610, a £19,785 spread on the same certified stone. Taylor and Hart lists it at £27,610. 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

20.70
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG716504125
Dimensions22.32 × 15.40 × 9.50 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
22.32 mm15.40 mm20.70 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG716504125
Side View
Table 62.0%Crown 34.8°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £10,802 GBP|Low: £7,511 GBP|High: £27,659 GBP|Avg: £13,775 GBP|-12.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
November 2, 2026
Retailer 8£7,825 GBP
Retailer 3£8,364 GBP
Retailer 2£8,963 GBP
Retailer 11£9,076 GBP
Retailer 4£9,512 GBP
Retailer 6£9,544 GBP
Retailer 7£9,781 GBP
Retailer 1£10,802 GBP
Retailer 5£15,175 GBP
Retailer 9£20,737 GBP
Retailer 10£26,584 GBP
Taylor and Hart£27,610 GBP

37 data points across 12 retailers

12 retailers£7,825 GBP to £27,610 GBP

B+
Cheapest Retailer
-
£7,825 GBP
$10,484 USD
B+
Retailer 2
-
£8,364 GBP
$11,207 USD
View
B
Retailer 3
-
£8,963 GBP
$12,010 USD
View
Retailer 4
-
£9,076 GBP
$12,161 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
£9,512 GBP
$12,745 USD
View
B+
Retailer 6
-
£9,544 GBP
$12,788 USD
View
B+
Retailer 7
-
£9,781 GBP
$13,105 USD
View
B+
Retailer 8
-
£10,802 GBP
View
B
Retailer 9
-
£15,175 GBP
€19,365 EUR
View
B
Retailer 10
-
£20,737 GBP
$27,785 USD
View
B
Retailer 11
-
£26,584 GBP
$35,620 USD
View
Most Expensive
B
Taylor and Hart
SV5MZIH · Oct 31
£27,610 GBP
$36,994 USD
View
11 more retailers have this diamond
Prices start from £7,825 GBPSave up to £19,785 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.

B+
20.70ct Oval
£7,825 GBP