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 $486 USD
As of October 30, 2026
Save $1,484 USD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,970 USD 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 30, 2026, with prices from $486 to $1,970, a $1,484 spread on the same certified stone. Brilliant Earth lists it at $1,970. 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
Color
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: Oct 30
Current: $1,970 USD|Low: $442 USD|High: $1,970 USD|Avg: $1,013 USD|+2.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$486 USD
Retailer 7$513 USD
Retailer 2$719 USD
Retailer 3$1,030 USD
Retailer 5$1,150 USD
Retailer 4$1,614 USD
Brilliant Earth$1,970 USD

42 data points across 7 retailers

10 retailers$486 USD to $1,970 USD

A
Cheapest Retailer
-
$486 USD
A
Retailer 2
-
$500 USD
View
A
Retailer 3
-
$513 USD
View
B+
Retailer 4
-
$719 USD
£566 GBP
View
B
Retailer 5
-
$1,030 USD
A$1,584 AUD
View
Retailer 6
-
$1,150 USD
View
Price last confirmed 13 days ago
B
Retailer 7
-
$1,288 USD
£1,014 GBP
View
B
Retailer 8
-
$1,454 USD
View
B
Retailer 9
-
$1,614 USD
£1,271 GBP
View
Most Expensive
B
Brilliant Earth
16281413A · Oct 31
$1,970 USD
View
9 more retailers have this diamond
Prices start from $486 USDSave up to $1,484 USD

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
$486 USD