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Radiant|Lab Grown|IGI

1.63ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816623867

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

Certificate IGI LG816623867

Diamond specifications and retailer prices

From $698 USD
£550 GBP
As of November 2, 2026
Save $3,582 USD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,280 USD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816623867 or 816623867. Listed at 9 retailers as of November 1, 2026, with prices from $698 to $4,280, a $3,582 spread on the same certified stone. Do Amore Diamonds lists it at $4,280. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.63
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816623867
Dimensions8.23 × 5.89 × 3.89 mm
L/W Ratio1.40
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
8.23 mm5.89 mm1.63 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816623867
Side View
Table 67.0%Crown 46°Girdle: MediumPavilion 35.1°Culet: NoneDepth 66.0%

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: Nov 2
Current: $4,280 USD|Low: $496 USD|High: $5,170 USD|Avg: $2,025 USD|-12.3%
Do Amore Diamonds
Retailer 2
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Retailer 16
November 2, 2026
Retailer 4$496 USD
Retailer 7$541 USD
Retailer 9$698 USD
Retailer 13$933 USD
Retailer 11$935 USD
Retailer 16$1,231 USD
Retailer 6$1,285 USD
Retailer 5$1,349 USD
Retailer 2$1,494 USD
Retailer 15$1,979 USD
Retailer 3$2,271 USD
Retailer 8$2,711 USD
Retailer 10$2,756 USD
Retailer 12$3,620 USD
Retailer 14$3,890 USD
Do Amore Diamonds$4,280 USD

21 data points across 16 retailers

9 retailers$698 USD to $4,280 USD

A
Cheapest Retailer
-
$698 USD
£550 GBP
A
Retailer 2
-
$933 USD
View
A
Retailer 3
-
$935 USD
View
B+
Retailer 4
-
$1,494 USD
View
B+
Retailer 5
-
$1,979 USD
View
B+
Retailer 6
-
$2,756 USD
£2,170 GBP
View
B
Retailer 7
-
$3,620 USD
View
B
Retailer 8
-
$3,890 USD
View
Most Expensive
B
Do Amore Diamonds
27-746C3AFEF · Nov 1
$4,280 USD
View
8 more retailers have this diamond
Prices start from $698 USDSave up to $3,582 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
$698 USD