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 $996 AUD
£550 GBP
As of November 2, 2026
Save $5,111 AUD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,107 AUD 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 $996 to $6,107, a $5,111 spread on the same certified stone. Do Amore Diamonds lists it at $6,107. 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
Colour
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: $6,107 AUD|Low: $708 AUD|High: $7,377 AUD|Avg: $2,889 AUD|-12.3%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 2, 2026
Retailer 4$708 AUD
Retailer 7$772 AUD
Retailer 9$996 AUD
Retailer 13$1,331 AUD
Retailer 11$1,334 AUD
Retailer 16$1,757 AUD
Retailer 6$1,834 AUD
Retailer 5$1,925 AUD
Retailer 2$2,132 AUD
Retailer 15$2,823 AUD
Retailer 3$3,240 AUD
Retailer 8$3,868 AUD
Retailer 10$3,932 AUD
Retailer 12$5,165 AUD
Retailer 14$5,551 AUD
Do Amore Diamonds$6,107 AUD

21 data points across 16 retailers

9 retailers$996 AUD to $6,107 AUD

A
Cheapest Retailer
-
$996 AUD
£550 GBP
A
Retailer 2
-
$1,331 AUD
$933 USD
View
A
Retailer 3
-
$1,334 AUD
$935 USD
View
B+
Retailer 4
-
$2,132 AUD
$1,494 USD
View
B+
Retailer 5
-
$2,823 AUD
$1,979 USD
View
B+
Retailer 6
-
$3,932 AUD
£2,170 GBP
View
B
Retailer 7
-
$5,165 AUD
$3,620 USD
View
B
Retailer 8
-
$5,551 AUD
$3,890 USD
View
Most Expensive
B
Do Amore Diamonds
27-746C3AFEF · Nov 1
$6,107 AUD
$4,280 USD
View
8 more retailers have this diamond
Prices start from $996 AUDSave up to $5,111 AUD

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
$996 AUD