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Radiant|Lab Grown|IGI

1.00ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG800610785

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

Certificate IGI LG800610785

Diamond specifications and retailer prices

From £108 GBP
As of November 6, 2026
Save £650 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £757 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1ct lab-grown radiant diamond

This 1ct 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 LG800610785 or 800610785. Listed at 18 retailers as of November 6, 2026, with prices from £108 to £757, a £650 spread on the same certified stone. Reve Diamonds lists it at £757. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.2°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800610785
Dimensions7.39 × 4.80 × 3.08 mm
L/W Ratio1.54
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
7.39 mm4.80 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800610785
Side View
Table 63.0%Crown 26.2°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £230 GBP|Low: £101 GBP|High: £757 GBP|Avg: £276 GBP|+2.3%
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
Reve Diamonds
November 6, 2026
Retailer 2£108 GBP
Retailer 14£125 GBP
Retailer 11£130 GBP
Retailer 6£133 GBP
Retailer 8£158 GBP
Retailer 9£226 GBP
Retailer 1£230 GBP
Retailer 15£235 GBP
Retailer 3£247 GBP
Retailer 4£253 GBP
Retailer 12£349 GBP
Retailer 13£428 GBP
Retailer 5£469 GBP
Retailer 7£471 GBP
Retailer 10£620 GBP
Reve Diamonds£757 GBP

37 data points across 16 retailers

18 retailers£108 GBP to £757 GBP

A
Cheapest Retailer
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£108 GBP
A
Retailer 2
-
£125 GBP
View
A
Retailer 3
-
£130 GBP
View
Final sale: no returns
Retailer 4
-
£130 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
£133 GBP
View
A
Retailer 6
-
£158 GBP
View
A
Retailer 7
-
£226 GBP
View
A
Retailer 8
-
£230 GBP
View
A
Retailer 9
-
£235 GBP
View
A
Retailer 10
-
£247 GBP
View
A
Retailer 11
-
£253 GBP
View
B+
Retailer 12
-
£349 GBP
View
B+
Retailer 13
-
£428 GBP
View
Retailer 14
-
£451 GBP
View
Price last confirmed 103 days ago
B
Retailer 15
-
£469 GBP
View
B
Retailer 16
-
£471 GBP
View
B
Retailer 17
-
£620 GBP
View
Most Expensive
B
Reve Diamonds
0CA34C042 · Nov 6
£757 GBP
$1,014 USD
View
17 more retailers have this diamond
Prices start from £108 GBPSave up to £650 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
1.00ct Radiant
£108 GBP