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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 $199 AUD
As of November 6, 2026
Save $1,856 AUD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,055 AUD 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 $199 to $2,055, a $1,856 spread on the same certified stone. MOH London lists it at $2,055. 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

How it works →
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: Nov 6
Current: $2,055 AUD|Low: $189 AUD|High: $2,072 AUD|Avg: $614 AUD|+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$199 AUD
Retailer 9$231 AUD
Retailer 4$247 AUD
Retailer 5$249 AUD
Retailer 2$415 AUD
Retailer 11$453 AUD
Retailer 6$456 AUD
Retailer 14$461 AUD
Retailer 3$469 AUD
Retailer 12$604 AUD
Retailer 7$633 AUD
Retailer 8$793 AUD
Retailer 10$838 AUD
MOH London$2,055 AUD

45 data points across 14 retailers

13 retailers$199 AUD to $2,055 AUD

A
Cheapest Retailer
-
$199 AUD
A
Retailer 2
-
$231 AUD
View
A
Retailer 3
-
$247 AUD
View
Retailer 4
-
$249 AUD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$415 AUD
View
A
Retailer 6
-
$453 AUD
View
A
Retailer 7
-
$461 AUD
View
A
Retailer 8
-
$469 AUD
View
B+
Retailer 9
-
$604 AUD
View
B+
Retailer 10
-
$633 AUD
View
B+
Retailer 11
-
$793 AUD
View
B
Retailer 12
-
$838 AUD
View
Most Expensive
B
MOH London
LG786681221 · Nov 5
$2,055 AUD
£1,112 GBP
View
12 more retailers have this diamond
Prices start from $199 AUDSave up to $1,856 AUD

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
$199 AUD