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Radiant|Lab Grown|IGI

0.91ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG506195999

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

Certificate IGI LG506195999

Diamond specifications and retailer prices

From $974 NZD
As of November 6, 2026
Save $3,554 NZD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,021 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 0.91ct lab-grown radiant diamond

This 0.91ct lab-grown radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506195999 or 506195999. Listed at 10 retailers as of November 6, 2026, with a 365% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.91
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle29.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195999
Dimensions6.61 × 4.59 × 3.22 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.61 mm4.59 mm0.91 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195999
Side View
Table 65.5%Crown 43.9°Girdle: MediumPavilion 29.6°Culet: NoneDepth 70.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,021 NZD|Low: $974 NZD|High: $6,916 NZD|Avg: $2,965 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2$974 NZD
Retailer 6$1,389 NZD
Retailer 10$1,510 NZD
Retailer 11$1,553 NZD
Retailer 7$1,611 NZD
Retailer 12$1,930 NZD
Retailer 3$2,491 NZD
Retailer 9$2,605 NZD
Retailer 5$3,830 NZD
Retailer 8$4,528 NZD
MOH London$6,021 NZD
Retailer 4$6,916 NZD

14 data points across 12 retailers

10 retailers$974 NZD to $4,528 NZD

B+
Cheapest Retailer
-
$974 NZD
B+
Retailer 2
-
$1,389 NZD
View
B
Retailer 3
-
$1,510 NZD
View
B
Retailer 4
-
$1,553 NZD
View
Final sale: no returns
Retailer 5
-
$1,611 NZD
View
Price last confirmed 26 days ago
B
Retailer 6
-
$1,611 NZD
View
B
Retailer 7
-
$2,605 NZD
View
B
Retailer 8
-
$3,830 NZD
View
B
Retailer 9
-
$4,528 NZD
View
Most Expensive
MOH London
LG506195999 · Nov 5
$6,021 NZD
£2,628 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $974 NZDSave up to $3,554 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.

B+
0.91ct Radiant
$974 NZD