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Radiant|Lab Grown|IGI

0.64ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG646472289

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

Certificate IGI LG646472289

Diamond specifications and retailer prices

From $498 USD
£392 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $498 USD at MD Diamonds and Jewellers
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at MD Diamonds and Jewellers

About this 0.64ct lab-grown radiant diamond

This 0.64ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG646472289 or 646472289. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.64
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646472289
Dimensions5.93 × 4.27 × 2.90 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.93 mm4.27 mm0.64 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646472289
Side View
Table 67.0%Crown 41.7°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 67.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $520 USD|Low: $212 USD|High: $657 USD|Avg: $400 USD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
August 28, 2026
Retailer 6$212 USD
Retailer 5$268 USD
Retailer 2$277 USD
Retailer 7$288 USD
Retailer 3$302 USD
Retailer 1$520 USD
Retailer 4$657 USD

19 data points across 7 retailers

1 retailer

B
MD Diamonds and Jewellers
LG646472289 · Oct 29
$498 USD
£392 GBP
View

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.

B
0.64ct Radiant
$498 USD