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 $522 USD
As of October 30, 2026
Save $2,448 USD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,740 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,740 USD|Low: $584 USD|High: $3,785 USD|Avg: $1,750 USD|-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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 4$584 USD
Retailer 10$668 USD
Retailer 15$785 USD
Retailer 14$980 USD
Retailer 5$1,002 USD
Retailer 11$1,003 USD
Retailer 12$1,112 USD
Retailer 7$1,241 USD
Retailer 16$1,669 USD
Retailer 3$1,890 USD
Retailer 8$2,041 USD
Retailer 9$2,103 USD
Retailer 6$2,118 USD
Retailer 17$2,256 USD
Retailer 13$2,704 USD
Retailer 2$2,970 USD
Rare Carat$3,740 USD

27 data points across 17 retailers

20 retailers$522 USD to $2,970 USD

A
Cheapest Retailer
-
$522 USD
A
Retailer 2
-
$584 USD
View
Final sale: no returns
Retailer 3
-
$647 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$647 USD
View
A
Retailer 5
-
$668 USD
£526 GBP
View
A
Retailer 6
-
$785 USD
View
A
Retailer 7
-
$980 USD
€933 EUR
View
A
Retailer 8
-
$1,002 USD
View
A
Retailer 9
-
$1,003 USD
£790 GBP
View
A
Retailer 10
-
$1,112 USD
ZAR 17,959 ZAR
View
B+
Retailer 11
-
$1,241 USD
View
B+
Retailer 12
-
$1,669 USD
View
B+
Retailer 13
-
$1,890 USD
£1,488 GBP
View
B+
Retailer 14
-
$2,041 USD
SGD 2,758 SGD
View
B+
Retailer 15
-
$2,103 USD
View
B
Retailer 16
-
$2,118 USD
View
B
Retailer 17
-
$2,256 USD
View
B
Retailer 18
-
$2,704 USD
£2,129 GBP
View
B
Retailer 19
-
$2,970 USD
View
Most Expensive
Rare Carat
PD-248168 · Oct 18
$3,740 USD
View
Price last confirmed 11 days ago
19 more retailers have this diamond
Prices start from $522 USDSave up to $2,448 USD

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
$522 USD