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Radiant|Lab Grown|IGI

1.88ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG846663228

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

Certificate IGI LG846663228

Diamond specifications and retailer prices

From $1,128 AUD
£624 GBP
As of November 1, 2026
Save $4,866 AUD (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,993 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.88ct lab-grown radiant diamond

This 1.88ct 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 LG846663228 or 846663228. Listed at 8 retailers as of October 31, 2026, with prices from $1,128 to $5,993, a $4,866 spread on the same certified stone. Brilliant Earth lists it at $5,993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.88
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663228
Dimensions7.31 × 6.63 × 4.59 mm
L/W Ratio1.10
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
7.31 mm6.63 mm1.88 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663228
Side View
Table 59.0%Crown 35°Girdle: ThickPavilion 35.6°Culet: NoneDepth 69.2%

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 1
Current: $5,993 AUD|Low: $1,128 AUD|High: $5,993 AUD|Avg: $2,978 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2$1,128 AUD
Retailer 4$1,331 AUD
Retailer 7$1,634 AUD
Retailer 5$2,348 AUD
Retailer 3$3,390 AUD
Retailer 6$3,636 AUD
Retailer 8$4,594 AUD
Brilliant Earth$5,993 AUD

8 data points across 8 retailers

8 retailers$1,128 AUD to $5,993 AUD

A
Cheapest Retailer
-
$1,128 AUD
£624 GBP
A
Retailer 2
-
$1,331 AUD
$935 USD
View
A
Retailer 3
-
$1,634 AUD
$1,148 USD
View
B+
Retailer 4
-
$2,348 AUD
$1,649 USD
View
B
Retailer 5
-
$3,390 AUD
€2,268 EUR
View
B+
Retailer 6
-
$3,636 AUD
$2,554 USD
View
B
Retailer 7
-
$4,594 AUD
£2,541 GBP
View
Most Expensive
B
Brilliant Earth
22305457A · Oct 31
$5,993 AUD
$4,210 USD
View
7 more retailers have this diamond
Prices start from $1,128 AUDSave up to $4,866 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
1.88ct Radiant
$1,128 AUD