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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 $247 NZD
As of November 6, 2026
Save $2,300 NZD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,548 NZD 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 $247 to $2,548, a $2,300 spread on the same certified stone. MOH London lists it at $2,548. 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: $2,548 NZD|Low: $235 NZD|High: $2,568 NZD|Avg: $762 NZD|+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$247 NZD
Retailer 9$287 NZD
Retailer 4$307 NZD
Retailer 5$308 NZD
Retailer 2$514 NZD
Retailer 11$561 NZD
Retailer 6$565 NZD
Retailer 14$572 NZD
Retailer 3$581 NZD
Retailer 12$749 NZD
Retailer 7$785 NZD
Retailer 8$983 NZD
Retailer 10$1,039 NZD
MOH London$2,548 NZD

45 data points across 14 retailers

13 retailers$247 NZD to $2,548 NZD

A
Cheapest Retailer
-
$247 NZD
A
Retailer 2
-
$287 NZD
View
A
Retailer 3
-
$307 NZD
View
Retailer 4
-
$308 NZD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$514 NZD
View
A
Retailer 6
-
$561 NZD
View
A
Retailer 7
-
$572 NZD
View
A
Retailer 8
-
$581 NZD
View
B+
Retailer 9
-
$749 NZD
View
B+
Retailer 10
-
$785 NZD
View
B+
Retailer 11
-
$983 NZD
View
B
Retailer 12
-
$1,039 NZD
View
Most Expensive
B
MOH London
LG786681221 · Nov 5
$2,548 NZD
£1,112 GBP
View
12 more retailers have this diamond
Prices start from $247 NZDSave up to $2,300 NZD

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
$247 NZD