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Radiant|Lab Grown|IGI

0.98ct D IF Radiant Lab Grown Diamond

GD • D/IF • IGI LG639459590

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

Certificate IGI LG639459590

Diamond specifications and retailer prices

From $621 SGD
$486 USD
As of November 1, 2026
Save $1,897 SGD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,518 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 0.98ct lab-grown radiant diamond

This 0.98ct lab-grown radiant sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG639459590 or 639459590. Listed at 10 retailers as of October 31, 2026, with prices from $621 to $2,518, a $1,897 spread on the same certified stone. Brilliant Earth lists it at $2,518. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.98
Carat
D
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639459590
Dimensions6.83 × 5.04 × 3.41 mm
L/W Ratio1.36
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.83 mm5.04 mm0.98 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639459590
Side View
Table 64.0%Crown 41.6°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 67.7%

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: $2,518 SGD|Low: $565 SGD|High: $2,518 SGD|Avg: $1,290 SGD|+2.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$621 SGD
Retailer 7$656 SGD
Retailer 3$919 SGD
Retailer 4$1,316 SGD
Retailer 5$1,470 SGD
Retailer 2$2,060 SGD
Brilliant Earth$2,518 SGD

42 data points across 7 retailers

10 retailers$621 SGD to $2,518 SGD

A
Cheapest Retailer
-
$621 SGD
$486 USD
A
Retailer 2
-
$639 SGD
$500 USD
View
A
Retailer 3
-
$656 SGD
$513 USD
View
B+
Retailer 4
-
$919 SGD
£566 GBP
View
B
Retailer 5
-
$1,316 SGD
A$1,584 AUD
View
Retailer 6
-
$1,470 SGD
$1,150 USD
View
Price last confirmed 13 days ago
B
Retailer 7
-
$1,646 SGD
£1,014 GBP
View
B
Retailer 8
-
$1,859 SGD
$1,454 USD
View
B
Retailer 9
-
$2,060 SGD
£1,269 GBP
View
Most Expensive
B
Brilliant Earth
16281413A · Oct 31
$2,518 SGD
$1,970 USD
View
9 more retailers have this diamond
Prices start from $621 SGDSave up to $1,897 SGD

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
0.98ct Radiant
$621 SGD