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Radiant|Lab Grown|IGI

1.89ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG846663699

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

Certificate IGI LG846663699

Diamond specifications and retailer prices

From $966 AUD
£534 GBP
As of October 30, 2026
Save $5,070 AUD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,036 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.89ct lab-grown radiant diamond

This 1.89ct 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 LG846663699 or 846663699. Listed at 9 retailers as of October 30, 2026, with prices from $966 to $6,036, a $5,070 spread on the same certified stone. Brilliant Earth lists it at $6,036. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663699
Dimensions8.85 × 6.31 × 3.95 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
8.85 mm6.31 mm1.89 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663699
Side View
Table 62.0%Crown 35.8°Girdle: STK-THKPavilion 33.5°Culet: NoneDepth 62.6%

Caratlytics Score

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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: $6,036 AUD|Low: $966 AUD|High: $6,036 AUD|Avg: $2,880 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7$966 AUD
Retailer 2$1,103 AUD
Retailer 6$1,414 AUD
Retailer 4$2,316 AUD
Retailer 3$2,350 AUD
Retailer 5$3,126 AUD
Retailer 8$3,410 AUD
Retailer 9$4,618 AUD
Brilliant Earth$6,036 AUD

6 data points across 9 retailers

9 retailers$966 AUD to $6,036 AUD

A
Cheapest Retailer
-
$966 AUD
£534 GBP
A
Retailer 2
-
$1,103 AUD
$775 USD
View
A
Retailer 3
-
$1,414 AUD
$993 USD
View
B+
Retailer 4
-
$2,316 AUD
$1,627 USD
View
B+
Retailer 5
-
$2,350 AUD
$1,651 USD
View
B+
Retailer 6
-
$3,126 AUD
$2,196 USD
View
B+
Retailer 7
-
$3,410 AUD
$2,395 USD
View
B
Retailer 8
-
$4,618 AUD
£2,554 GBP
View
Most Expensive
B
Brilliant Earth
22319380A · Oct 31
$6,036 AUD
$4,240 USD
View
8 more retailers have this diamond
Prices start from $966 AUDSave up to $5,070 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
1.89ct Radiant
$966 AUD