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Radiant|Lab Grown|IGI

1.64ct F VS1 Radiant Lab Grown Diamond

VG • F/VS1 • IGI LG529247638

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

Certificate IGI LG529247638

Diamond specifications and retailer prices

From £190 GBP
$255 USD
As of November 1, 2026
Save £712 GBP (79%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £902 GBP at Michael Trio · As of November 2, 2026
View at Michael Trio

About this 1.64ct lab-grown radiant diamond

This 1.64ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG529247638 or 529247638. Listed at 6 retailers as of November 1, 2026, with prices from £190 to £902, a £712 spread on the same certified stone. Michael Trio lists it at £902. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.64
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529247638
Dimensions7.77 × 5.80 × 4.18 mm
L/W Ratio1.34
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.77 mm5.80 mm1.64 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529247638
Side View
Table 71.0%Crown 46.2°Girdle: MediumPavilion 35.5°Culet: NoneDepth 72.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £902 GBP|Low: £190 GBP|High: £902 GBP|Avg: £522 GBP
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 18, 2026
Retailer 4£190 GBP
Retailer 5£315 GBP
Retailer 6£351 GBP
Retailer 7£399 GBP
Retailer 8£554 GBP
Retailer 3£720 GBP
Retailer 2£776 GBP
Michael Trio£902 GBP

5 data points across 8 retailers

6 retailers£190 GBP to £902 GBP

A
Cheapest Retailer
-
£190 GBP
$255 USD
Final sale: no returns
A
Retailer 2
-
£315 GBP
HK$3,300 HKD
View
A
Retailer 3
-
£351 GBP
$470 USD
View
Retailer 4
-
£720 GBP
A$1,485 AUD
View
Price last confirmed 7 days ago
B
Retailer 5
-
£776 GBP
$1,040 USD
View
Most Expensive
B
Michael Trio
1869020740 · Nov 2
£902 GBP
SGD 1,634 SGD
View
5 more retailers have this diamond
Prices start from £190 GBPSave up to £712 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
1.64ct Radiant
£190 GBP