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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 $176 SGD
As of November 6, 2026
Save $1,634 SGD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,810 SGD 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 $176 to $1,810, a $1,634 spread on the same certified stone. MOH London lists it at $1,810. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,810 SGD|Low: $167 SGD|High: $1,825 SGD|Avg: $541 SGD|+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$176 SGD
Retailer 9$204 SGD
Retailer 4$218 SGD
Retailer 5$219 SGD
Retailer 2$365 SGD
Retailer 11$399 SGD
Retailer 6$401 SGD
Retailer 14$406 SGD
Retailer 3$413 SGD
Retailer 12$532 SGD
Retailer 7$557 SGD
Retailer 8$698 SGD
Retailer 10$738 SGD
MOH London$1,810 SGD

45 data points across 14 retailers

13 retailers$176 SGD to $1,810 SGD

A
Cheapest Retailer
-
$176 SGD
A
Retailer 2
-
$204 SGD
View
A
Retailer 3
-
$218 SGD
View
Retailer 4
-
$219 SGD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$365 SGD
View
A
Retailer 6
-
$399 SGD
View
A
Retailer 7
-
$406 SGD
View
A
Retailer 8
-
$413 SGD
View
B+
Retailer 9
-
$532 SGD
View
B+
Retailer 10
-
$557 SGD
View
B+
Retailer 11
-
$698 SGD
View
B
Retailer 12
-
$738 SGD
View
Most Expensive
B
MOH London
LG786681221 · Nov 5
$1,810 SGD
£1,112 GBP
View
12 more retailers have this diamond
Prices start from $176 SGDSave up to $1,634 SGD

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
$176 SGD