Radiant|Lab Grown|IGI

1.01ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG654450368

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

Certificate IGI LG654450368

Diamond specifications and retailer prices

From $127 USD
As of October 30, 2026
Save $453 USD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $580 USD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG654450368 or 654450368. Listed at 12 retailers as of October 29, 2026, with prices from $127 to $580, a $453 spread on the same certified stone. Diamond Quarter lists it at $580. 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

1.01
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654450368
Dimensions7.27 × 4.86 × 3.31 mm
L/W Ratio1.50
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.27 mm4.86 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654450368
Side View
Table 63.0%Crown 45.3°Girdle: MediumPavilion 35.3°Culet: NoneDepth 68.1%

Caratlytics Score

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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: $127 USD|Low: $127 USD|High: $960 USD|Avg: $366 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 1$127 USD
Retailer 3$147 USD
Retailer 10$157 USD
Retailer 2$179 USD
Retailer 8$188 USD
Retailer 4$244 USD
Retailer 9$262 USD
Retailer 15$298 USD
Retailer 14$299 USD
Retailer 13$313 USD
Retailer 11$404 USD
Retailer 12$505 USD
Retailer 6$574 USD
Retailer 5$616 USD
Retailer 7$960 USD

3 data points across 15 retailers

12 retailers$127 USD to $580 USD

A
Cheapest Retailer
-
$127 USD
A
Retailer 2
-
$147 USD
View
A
Retailer 3
-
$157 USD
View
A
Retailer 4
-
$179 USD
HK$1,400 HKD
View
A
Retailer 5
-
$188 USD
£148 GBP
View
A
Retailer 6
-
$262 USD
£206 GBP
View
A
Retailer 7
-
$298 USD
£235 GBP
View
B+
Retailer 8
-
$299 USD
View
A
Retailer 9
-
$313 USD
View
B+
Retailer 10
-
$404 USD
View
B+
Retailer 11
-
$505 USD
View
Most Expensive
B
Diamond Quarter
1.01SI1DLG68BFEEN · Oct 29
$580 USD
£457 GBP
View
11 more retailers have this diamond
Prices start from $127 USDSave up to $453 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
1.01ct Radiant
$127 USD