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Radiant|Lab Grown|IGI

1.63ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG836607900

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

Certificate IGI LG836607900

Diamond specifications and retailer prices

From £390 GBP
$522 USD
As of October 30, 2026
Save £1,827 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,791 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.63ct lab-grown radiant diamond

This 1.63ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836607900 or 836607900. Listed at 20 retailers as of October 30, 2026, with a 469% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.63
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836607900
Dimensions7.99 × 5.80 × 4.05 mm
L/W Ratio1.38
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
7.99 mm5.80 mm1.63 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836607900
Side View
Table 67.0%Crown 45.8°Girdle: MediumPavilion 37.2°Culet: NoneDepth 69.8%

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: Oct 30
Current: £2,791 GBP|Low: £390 GBP|High: £2,825 GBP|Avg: £1,223 GBP|-1.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 19
October 31, 2026
Retailer 4£390 GBP
Retailer 5£436 GBP
Retailer 7£483 GBP
Retailer 15£499 GBP
Retailer 18£586 GBP
Retailer 2£733 GBP
Retailer 12£742 GBP
Retailer 6£748 GBP
Retailer 16£830 GBP
Retailer 9£926 GBP
Retailer 13£1,127 GBP
Retailer 3£1,410 GBP
Retailer 10£1,523 GBP
Retailer 11£1,570 GBP
Retailer 8£1,581 GBP
Retailer 19£1,684 GBP
Retailer 17£2,018 GBP
Retailer 14£2,217 GBP
Rare Carat£2,791 GBP

27 data points across 19 retailers

20 retailers£390 GBP to £2,217 GBP

A
Cheapest Retailer
-
£390 GBP
$522 USD
A
Retailer 2
-
£436 GBP
$584 USD
View
Final sale: no returns
Retailer 3
-
£483 GBP
$647 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£483 GBP
$647 USD
View
A
Retailer 5
-
£499 GBP
View
A
Retailer 6
-
£586 GBP
$785 USD
View
A
Retailer 7
-
£733 GBP
€935 EUR
View
A
Retailer 8
-
£742 GBP
View
A
Retailer 9
-
£748 GBP
$1,002 USD
View
A
Retailer 10
-
£830 GBP
ZAR 17,959 ZAR
View
B+
Retailer 11
-
£926 GBP
$1,241 USD
View
B+
Retailer 12
-
£1,127 GBP
$1,510 USD
View
B+
Retailer 13
-
£1,410 GBP
View
B+
Retailer 14
-
£1,523 GBP
SGD 2,758 SGD
View
B+
Retailer 15
-
£1,570 GBP
$2,103 USD
View
B
Retailer 16
-
£1,581 GBP
$2,118 USD
View
B
Retailer 17
-
£1,684 GBP
$2,256 USD
View
B
Retailer 18
-
£2,018 GBP
View
B
Retailer 19
-
£2,217 GBP
$2,970 USD
View
Most Expensive
Rare Carat
PD-248168 · Oct 18
£2,791 GBP
$3,740 USD
View
Price last confirmed 12 days ago
19 more retailers have this diamond
Prices start from £390 GBPSave up to £1,827 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
1.63ct Radiant
£390 GBP