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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 £95 GBP
$127 USD
As of October 30, 2026
Save £338 GBP (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £433 GBP 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 13 retailers as of October 29, 2026, with prices from £95 to £433, a £338 spread on the same certified stone. Diamond Quarter lists it at £433. 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
Colour
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: £210 GBP|Low: £95 GBP|High: £716 GBP|Avg: £271 GBP|+15.5%
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 31, 2026
Retailer 9£95 GBP
Retailer 4£110 GBP
Retailer 11£117 GBP
Retailer 3£134 GBP
Retailer 10£141 GBP
Retailer 8£194 GBP
Retailer 1£210 GBP
Retailer 2£223 GBP
Retailer 15£223 GBP
Retailer 14£234 GBP
Retailer 12£302 GBP
Retailer 13£377 GBP
Retailer 6£428 GBP
Retailer 5£460 GBP
Retailer 7£716 GBP

4 data points across 15 retailers

13 retailers£95 GBP to £433 GBP

A
Cheapest Retailer
-
£95 GBP
$127 USD
A
Retailer 2
-
£110 GBP
$147 USD
View
A
Retailer 3
-
£117 GBP
$157 USD
View
A
Retailer 4
-
£134 GBP
HK$1,400 HKD
View
A
Retailer 5
-
£141 GBP
View
A
Retailer 6
-
£194 GBP
View
Retailer 7
-
£210 GBP
€268 EUR
View
A
Retailer 8
-
£223 GBP
View
B+
Retailer 9
-
£223 GBP
$299 USD
View
A
Retailer 10
-
£234 GBP
$313 USD
View
B+
Retailer 11
-
£302 GBP
$404 USD
View
B+
Retailer 12
-
£377 GBP
$505 USD
View
Most Expensive
B
Diamond Quarter
1.01SI1DLG68BFEEN · Oct 29
£433 GBP
View
12 more retailers have this diamond
Prices start from £95 GBPSave up to £338 GBP

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
£95 GBP