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Radiant|Lab Grown|IGI

1.62ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG843604897

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

Certificate IGI LG843604897

Diamond specifications and retailer prices

From £204 GBP
$273 USD
As of October 30, 2026
Save £2,274 GBP (92%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,478 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.62ct lab-grown radiant diamond

This 1.62ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843604897 or 843604897. Listed at 18 retailers as of October 30, 2026, with prices from £204 to £2,478, a £2,274 spread on the same certified stone. Brilliant Earth lists it at £2,478. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.62
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843604897
Dimensions8.08 × 5.83 × 4.00 mm
L/W Ratio1.39
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
8.08 mm5.83 mm1.62 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843604897
Side View
Table 64.0%Crown 45.7°Girdle: Slightly ThickPavilion 35°Culet: NoneDepth 68.6%

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 30
Current: £2,478 GBP|Low: £204 GBP|High: £2,799 GBP|Avg: £994 GBP|-11.5%
Brilliant Earth
Retailer 2
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Retailer 19
November 1, 2026
Retailer 16£204 GBP
Retailer 6£236 GBP
Retailer 2£294 GBP
Retailer 17£384 GBP
Retailer 3£417 GBP
Retailer 15£418 GBP
Retailer 12£463 GBP
Retailer 14£649 GBP
Retailer 8£675 GBP
Retailer 19£775 GBP
Retailer 5£802 GBP
Retailer 4£896 GBP
Retailer 11£1,053 GBP
Retailer 13£1,122 GBP
Retailer 10£1,257 GBP
Retailer 18£1,806 GBP
Retailer 9£2,090 GBP
Retailer 7£2,279 GBP
Brilliant Earth£2,478 GBP

19 data points across 19 retailers

18 retailers£204 GBP to £2,478 GBP

A
Cheapest Retailer
-
£204 GBP
$273 USD
A
Retailer 2
-
£236 GBP
$316 USD
View
A
Retailer 3
-
£294 GBP
View
A
Retailer 4
-
£384 GBP
$514 USD
View
A
Retailer 5
-
£417 GBP
$559 USD
View
A
Retailer 6
-
£418 GBP
$560 USD
View
A
Retailer 7
-
£463 GBP
€591 EUR
View
A
Retailer 8
-
£649 GBP
A$1,338 AUD
View
A
Retailer 9
-
£675 GBP
$904 USD
View
A
Retailer 10
-
£775 GBP
$1,039 USD
View
A
Retailer 11
-
£802 GBP
$1,074 USD
View
B+
Retailer 12
-
£896 GBP
$1,200 USD
View
Retailer 13
-
£1,053 GBP
$1,411 USD
View
Price last confirmed 15 days ago
B+
Retailer 14
-
£1,122 GBP
View
B
Retailer 15
-
£1,806 GBP
$2,420 USD
View
B
Retailer 16
-
£2,090 GBP
$2,800 USD
View
B
Retailer 17
-
£2,279 GBP
$3,054 USD
View
Most Expensive
B
Brilliant Earth
22166110Y · Oct 31
£2,478 GBP
$3,320 USD
View
17 more retailers have this diamond
Prices start from £204 GBPSave up to £2,274 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
1.62ct Radiant
£204 GBP