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Radiant|Lab Grown|IGI

1.63ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG739567284

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

Certificate IGI LG739567284

Diamond specifications and retailer prices

From $608 AUD
$427 USD
As of October 30, 2026
Save $4,531 AUD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $5,139 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG739567284 or 739567284. Listed at 24 retailers as of October 30, 2026, with prices from $608 to $5,139, a $4,531 spread on the same certified stone. Brilliant Earth lists it at $5,139. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739567284
Dimensions8.56 × 5.84 × 3.77 mm
L/W Ratio1.47
Culet sizePointed
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
8.56 mm5.84 mm1.63 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739567284
Side View
Table 68.0%Crown 41.9°Girdle: MED-STKPavilion 32.8°Culet: NoneDepth 64.6%

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: $5,139 AUD|Low: $522 AUD|High: $5,709 AUD|Avg: $1,692 AUD|-10.0%
Brilliant Earth
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
Retailer 18
Retailer 19
November 1, 2026
Retailer 19$544 AUD
Retailer 10$608 AUD
Retailer 3$675 AUD
Retailer 5$675 AUD
Retailer 12$897 AUD
Retailer 16$897 AUD
Retailer 9$1,136 AUD
Retailer 2$1,227 AUD
Retailer 15$1,279 AUD
Retailer 7$1,580 AUD
Retailer 11$1,634 AUD
Retailer 13$1,733 AUD
Retailer 17$1,892 AUD
Retailer 8$2,170 AUD
Retailer 4$2,525 AUD
Retailer 6$2,600 AUD
Retailer 14$2,750 AUD
Retailer 18$4,029 AUD
Brilliant Earth$5,139 AUD

43 data points across 19 retailers

24 retailers$608 AUD to $5,139 AUD

Retailer 1
-
$544 AUD
$382 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$608 AUD
$427 USD
View
Final sale: no returns
Retailer 3
-
$609 AUD
$428 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$675 AUD
$474 USD
View
Price last confirmed 16 days ago
Retailer 5
-
$675 AUD
$474 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
$897 AUD
$630 USD
View
A
Retailer 7
-
$897 AUD
$630 USD
View
A
Retailer 8
-
$1,136 AUD
$798 USD
View
A
Retailer 9
-
$1,227 AUD
£678 GBP
View
A
Retailer 10
-
$1,279 AUD
ZAR 14,516 ZAR
View
A
Retailer 11
-
$1,317 AUD
$925 USD
View
B+
Retailer 12
-
$1,580 AUD
$1,110 USD
View
B+
Retailer 13
-
$1,634 AUD
$1,148 USD
View
B+
Retailer 14
-
$1,733 AUD
View
B+
Retailer 15
-
$1,892 AUD
$1,329 USD
View
B+
Retailer 16
-
$2,170 AUD
£1,200 GBP
View
Retailer 17
-
$2,393 AUD
$1,681 USD
View
Price last confirmed 15 days ago
B+
Retailer 18
-
$2,515 AUD
$1,766 USD
View
B+
Retailer 19
-
$2,525 AUD
$1,774 USD
View
B
Retailer 20
-
$2,600 AUD
$1,827 USD
View
B
Retailer 21
-
$2,610 AUD
$1,833 USD
View
B+
Retailer 22
-
$2,750 AUD
£1,521 GBP
View
B
Retailer 23
-
$4,826 AUD
$3,390 USD
View
Most Expensive
B
Brilliant Earth
18396284Y · Oct 31
$5,139 AUD
$3,610 USD
View
23 more retailers have this diamond
Prices start from $608 AUDSave up to $4,531 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
$608 AUD