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Radiant|Lab Grown|IGI

0.90ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG591389265

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

Certificate IGI LG591389265

Diamond specifications and retailer prices

From $144 USD
As of October 30, 2026
Save $1,098 USD (88%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,242 USD at MOH London · As of October 27, 2026
View at MOH London

About this 0.9ct lab-grown radiant diamond

This 0.9ct lab-grown radiant sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG591389265 or 591389265. Listed at 9 retailers as of October 27, 2026, with prices from $144 to $1,242, a $1,098 spread on the same certified stone. MOH London lists it at $1,242. 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

0.90
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591389265
Dimensions4.89 × 4.89 × 7.35 mm
L/W Ratio1.00
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
4.89 mm4.89 mm0.90 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591389265
Side View
Table 56.0%Crown 37°Girdle: ThinPavilion 32.8°Culet: NoneDepth 64.1%

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: $1,242 USD|Low: $136 USD|High: $1,346 USD|Avg: $559 USD|-6.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 25, 2026
Retailer 6$144 USD
Retailer 7$274 USD
Retailer 4$288 USD
Retailer 3$375 USD
Retailer 2$392 USD
Retailer 5$800 USD
Retailer 8$973 USD
MOH London$1,242 USD

22 data points across 8 retailers

9 retailers$144 USD to $1,242 USD

A
Cheapest Retailer
-
$144 USD
Final sale: no returns
A
Retailer 2
-
$288 USD
View
B+
Retailer 3
-
$375 USD
View
B+
Retailer 4
-
$392 USD
View
B+
Retailer 5
-
$484 USD
£381 GBP
View
B
Retailer 6
-
$513 USD
£404 GBP
View
Retailer 7
-
$534 USD
View
Price last confirmed 14 days ago
B
Retailer 8
-
$800 USD
View
Most Expensive
B
MOH London
LG591389265 · Oct 26
$1,242 USD
£978 GBP
View
8 more retailers have this diamond
Prices start from $144 USDSave up to $1,098 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
0.90ct Radiant
$144 USD