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Radiant|Lab Grown|IGI

1.64ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG799676862

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

Certificate IGI LG799676862

Diamond specifications and retailer prices

From £502 GBP
$674 USD
As of November 2, 2026
Save £3,954 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,456 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799676862 or 799676862. Listed at 22 retailers as of November 2, 2026, with prices from £502 to £4,456, a £3,954 spread on the same certified stone. Do Amore Diamonds lists it at £4,456. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799676862
Dimensions8.72 × 5.87 × 3.87 mm
L/W Ratio1.49
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.72 mm5.87 mm1.64 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799676862
Side View
Table 60.0%Crown 39.6°Girdle: MediumPavilion 35°Culet: NoneDepth 65.9%

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: Nov 2
Current: £4,456 GBP|Low: £482 GBP|High: £4,456 GBP|Avg: £1,604 GBP
Do Amore Diamonds
Retailer 2
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November 2, 2026
Retailer 22£502 GBP
Retailer 21£546 GBP
Retailer 9£561 GBP
Retailer 3£582 GBP
Retailer 10£582 GBP
Retailer 16£715 GBP
Retailer 5£742 GBP
Retailer 6£767 GBP
Retailer 18£801 GBP
Retailer 8£949 GBP
Retailer 13£1,032 GBP
Retailer 2£1,181 GBP
Retailer 20£1,487 GBP
Retailer 7£1,807 GBP
Retailer 4£1,986 GBP
Retailer 14£1,999 GBP
Retailer 11£2,000 GBP
Retailer 15£2,299 GBP
Retailer 12£2,314 GBP
Retailer 17£2,527 GBP
Retailer 19£2,914 GBP
Do Amore Diamonds£4,456 GBP

45 data points across 22 retailers

22 retailers£502 GBP to £4,456 GBP

A
Cheapest Retailer
-
£502 GBP
$674 USD
A
Retailer 2
-
£546 GBP
$733 USD
View
A
Retailer 3
-
£561 GBP
$753 USD
View
Final sale: no returns
Retailer 4
-
£582 GBP
$781 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
£582 GBP
$781 USD
View
A
Retailer 6
-
£715 GBP
$960 USD
View
A
Retailer 7
-
£742 GBP
$996 USD
View
A
Retailer 8
-
£767 GBP
$1,029 USD
View
A
Retailer 9
-
£801 GBP
HK$8,400 HKD
View
B+
Retailer 10
-
£949 GBP
$1,273 USD
View
B+
Retailer 11
-
£1,032 GBP
View
B+
Retailer 12
-
£1,181 GBP
ZAR 25,601 ZAR
View
B+
Retailer 13
-
£1,487 GBP
$1,996 USD
View
B
Retailer 14
-
£1,807 GBP
$2,425 USD
View
B
Retailer 15
-
£1,986 GBP
$2,665 USD
View
B
Retailer 16
-
£1,999 GBP
View
B
Retailer 17
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£2,000 GBP
$2,683 USD
View
B
Retailer 18
-
£2,299 GBP
$3,086 USD
View
B
Retailer 19
-
£2,314 GBP
SGD 4,197 SGD
View
B
Retailer 20
-
£2,527 GBP
View
B
Retailer 21
-
£2,914 GBP
$3,910 USD
View
Most Expensive
B
Do Amore Diamonds
27-4291426D9 · Nov 2
£4,456 GBP
$5,980 USD
View
21 more retailers have this diamond
Prices start from £502 GBPSave up to £3,954 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
£502 GBP