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Radiant|Lab Grown|IGI

1.30ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG514268643

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

Certificate IGI LG514268643

Diamond specifications and retailer prices

From $1,467 NZD
As of November 6, 2026
Save $2,444 NZD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,360 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.3ct lab-grown radiant diamond

This 1.3ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514268643 or 514268643. Listed at 13 retailers as of November 4, 2026, with a 167% 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

1.30
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514268643
Dimensions7.77 × 5.36 × 3.45 mm
L/W Ratio1.45
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
7.77 mm5.36 mm1.30 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514268643
Side View
Table 66.5%Crown 45.5°Girdle: MediumPavilion 33.1°Culet: NoneDepth 64.4%

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: $6,360 NZD|Low: $1,407 NZD|High: $6,460 NZD|Avg: $2,681 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 4$1,467 NZD
Retailer 9$1,642 NZD
Retailer 6$1,701 NZD
Retailer 5$1,822 NZD
Retailer 8$2,020 NZD
Retailer 2$2,590 NZD
Retailer 7$2,740 NZD
Retailer 3$3,911 NZD
MOH London$6,360 NZD

44 data points across 9 retailers

13 retailers$1,467 NZD to $3,911 NZD

B+
Cheapest Retailer
-
$1,467 NZD
B+
Retailer 2
-
$1,595 NZD
View
B
Retailer 3
-
$1,642 NZD
View
Final sale: no returns
B
Retailer 4
-
$1,701 NZD
View
Retailer 5
-
$1,701 NZD
View
Price last confirmed 26 days ago
B
Retailer 6
-
$1,822 NZD
View
B
Retailer 7
-
$2,020 NZD
View
B
Retailer 8
-
$2,590 NZD
View
B
Retailer 9
-
$2,740 NZD
View
B
Retailer 10
-
$3,911 NZD
View
Retailer 11
-
$4,782 NZD
View
Price under review
Retailer 12
-
$5,197 NZD
View
Price under review
Most Expensive
MOH London
LG514268643 · Nov 5
$6,360 NZD
£2,776 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,467 NZDSave up to $2,444 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+
1.30ct Radiant
$1,467 NZD