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Radiant|Lab Grown|IGI

16.66ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG722509534

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

Certificate IGI LG722509534

Diamond specifications and retailer prices

From £2,455 GBP
$3,294 USD
As of November 2, 2026
Save £14,431 GBP (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £16,886 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 16.66ct lab-grown radiant diamond

This 16.66ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG722509534 or 722509534. Listed at 14 retailers as of November 2, 2026, with prices from £2,455 to £16,886, a £14,431 spread on the same certified stone. Do Amore Diamonds lists it at £16,886. 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

16.66
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle31.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722509534
Dimensions18.45 × 12.73 × 7.74 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.45 mm12.73 mm16.66 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG722509534
Side View
Table 68.0%Crown 45.4°Girdle: Slightly ThickPavilion 31.7°Culet: NoneDepth 60.8%

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 2
Current: £4,072 GBP|Low: £2,356 GBP|High: £9,558 GBP|Avg: £4,590 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8£2,455 GBP
Retailer 2£2,749 GBP
Retailer 9£2,847 GBP
Retailer 11£2,847 GBP
Retailer 6£2,850 GBP
Retailer 12£3,225 GBP
Retailer 10£3,927 GBP
Retailer 1£4,072 GBP
Retailer 5£4,865 GBP
Retailer 7£4,970 GBP
Retailer 4£7,795 GBP
Retailer 3£9,558 GBP

41 data points across 12 retailers

14 retailers£2,455 GBP to £16,886 GBP

A
Cheapest Retailer
-
£2,455 GBP
$3,294 USD
A
Retailer 2
-
£2,671 GBP
$3,584 USD
View
A
Retailer 3
-
£2,749 GBP
$3,689 USD
View
Final sale: no returns
A
Retailer 4
-
£2,847 GBP
$3,821 USD
View
Retailer 5
-
£2,847 GBP
$3,821 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
£2,850 GBP
$3,825 USD
View
A
Retailer 7
-
£3,225 GBP
$4,328 USD
View
A
Retailer 8
-
£3,927 GBP
$5,270 USD
View
A
Retailer 9
-
£4,072 GBP
View
B+
Retailer 10
-
£4,865 GBP
ZAR 105,459 ZAR
View
Retailer 11
-
£4,970 GBP
$6,670 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
£7,795 GBP
$10,461 USD
View
B
Retailer 13
-
£9,558 GBP
$12,826 USD
View
Most Expensive
B
Do Amore Diamonds
27-0293394E9 · Nov 2
£16,886 GBP
$22,660 USD
View
13 more retailers have this diamond
Prices start from £2,455 GBPSave up to £14,431 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
16.66ct Radiant
£2,455 GBP