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Radiant|Lab Grown|IGI

17.05ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG739534200

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

Certificate IGI LG739534200

Diamond specifications and retailer prices

From £4,161 GBP
$5,575 USD
As of October 31, 2026
Save £16,505 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £20,666 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 17.05ct lab-grown radiant diamond

This 17.05ct 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 LG739534200 or 739534200. Listed at 12 retailers as of October 31, 2026, with prices from £4,161 to £20,666, a £16,505 spread on the same certified stone. Brilliant Earth lists it at £20,666. 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

17.05
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle59.9°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739534200
Dimensions17.77 × 12.69 × 7.86 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.77 mm12.69 mm17.05 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739534200
Side View
Table 63.0%Crown 59.9°Girdle: MediumPavilion 32.4°Culet: NoneDepth 61.9%

Caratlytics Score

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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: Oct 31
Current: £20,666 GBP|Low: £4,161 GBP|High: £20,711 GBP|Avg: £8,029 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7£4,161 GBP
Retailer 3£4,336 GBP
Retailer 12£4,958 GBP
Retailer 5£5,253 GBP
Retailer 10£5,312 GBP
Retailer 9£6,083 GBP
Retailer 8£6,438 GBP
Retailer 6£6,674 GBP
Retailer 2£7,887 GBP
Retailer 11£12,824 GBP
Retailer 4£14,903 GBP
Brilliant Earth£20,666 GBP

41 data points across 12 retailers

12 retailers£4,161 GBP to £20,666 GBP

A
Cheapest Retailer
-
£4,161 GBP
$5,575 USD
A
Retailer 2
-
£4,336 GBP
$5,810 USD
View
B+
Retailer 3
-
£4,958 GBP
HK$51,900 HKD
View
B+
Retailer 4
-
£5,253 GBP
View
B+
Retailer 5
-
£5,312 GBP
$7,117 USD
View
B+
Retailer 6
-
£6,083 GBP
$8,150 USD
View
B+
Retailer 7
-
£6,438 GBP
ZAR 139,349 ZAR
View
B+
Retailer 8
-
£6,674 GBP
€8,517 EUR
View
B
Retailer 9
-
£7,887 GBP
A$16,258 AUD
View
B
Retailer 10
-
£12,824 GBP
$17,183 USD
View
B
Retailer 11
-
£14,903 GBP
$19,968 USD
View
Most Expensive
B
Brilliant Earth
19038613A · Oct 31
£20,666 GBP
$27,690 USD
View
11 more retailers have this diamond
Prices start from £4,161 GBPSave up to £16,505 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
17.05ct Radiant
£4,161 GBP