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Radiant|Lab Grown|IGI

1.00ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG786681221

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

Certificate IGI LG786681221

Diamond specifications and retailer prices

From €123 EUR
As of November 6, 2026
Save €1,142 EUR (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,265 EUR at MOH London · As of November 5, 2026
View at MOH London

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 LG786681221 or 786681221. Listed at 13 retailers as of November 5, 2026, with prices from €123 to €1,265, a €1,142 spread on the same certified stone. MOH London lists it at €1,265. 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 angle37.5°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786681221
Dimensions7.51 × 4.85 × 3.16 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm4.85 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786681221
Side View
Table 65.0%Crown 37.5°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 65.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €1,265 EUR|Low: €116 EUR|High: €1,275 EUR|Avg: €378 EUR|+0.9%
MOH London
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
November 6, 2026
Retailer 13€123 EUR
Retailer 9€142 EUR
Retailer 4€152 EUR
Retailer 5€153 EUR
Retailer 2€255 EUR
Retailer 11€279 EUR
Retailer 6€280 EUR
Retailer 14€284 EUR
Retailer 3€288 EUR
Retailer 12€372 EUR
Retailer 7€390 EUR
Retailer 8€488 EUR
Retailer 10€516 EUR
MOH London€1,265 EUR

45 data points across 14 retailers

13 retailers€123 EUR to €1,265 EUR

A
Cheapest Retailer
-
€123 EUR
A
Retailer 2
-
€142 EUR
View
A
Retailer 3
-
€152 EUR
View
Retailer 4
-
€153 EUR
View
Price last confirmed 13 days ago
A
Retailer 5
-
€255 EUR
View
A
Retailer 6
-
€279 EUR
View
A
Retailer 7
-
€284 EUR
View
A
Retailer 8
-
€288 EUR
View
B+
Retailer 9
-
€372 EUR
View
B+
Retailer 10
-
€390 EUR
View
B+
Retailer 11
-
€488 EUR
View
B
Retailer 12
-
€516 EUR
View
Most Expensive
B
MOH London
LG786681221 · Nov 5
€1,265 EUR
£1,112 GBP
View
12 more retailers have this diamond
Prices start from €123 EURSave up to €1,142 EUR

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
€123 EUR