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Radiant|Lab Grown|IGI

1.00ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG842612921

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

Certificate IGI LG842612921

Diamond specifications and retailer prices

From $424 NZD
As of November 6, 2026
Save $1,033 NZD (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,457 NZD at MOH London · As of November 4, 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 LG842612921 or 842612921. Listed at 8 retailers as of November 4, 2026, with prices from $424 to $1,457, a $1,033 spread on the same certified stone. MOH London lists it at $1,457. 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 angle46.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842612921
Dimensions6.93 × 4.91 × 3.38 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.93 mm4.91 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842612921
Side View
Table 69.0%Crown 46.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,457 NZD|Low: $424 NZD|High: $1,469 NZD|Avg: $730 NZD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$424 NZD
Retailer 2$529 NZD
Retailer 3$547 NZD
Retailer 6$565 NZD
Retailer 4$593 NZD
Retailer 5$1,104 NZD
MOH London$1,457 NZD

24 data points across 7 retailers

8 retailers$424 NZD to $1,457 NZD

B+
Cheapest Retailer
-
$424 NZD
A
Retailer 2
-
$529 NZD
View
A
Retailer 3
-
$547 NZD
View
A
Retailer 4
-
$565 NZD
View
A
Retailer 5
-
$593 NZD
View
B
Retailer 6
-
$1,104 NZD
View
B
Retailer 7
-
$1,317 NZD
View
Most Expensive
B
MOH London
LG842612921 · Nov 4
$1,457 NZD
£636 GBP
View
7 more retailers have this diamond
Prices start from $424 NZDSave up to $1,033 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
$424 NZD