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Radiant|Lab Grown|IGI

1.74ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG487108318

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

Certificate IGI LG487108318

Diamond specifications and retailer prices

From $1,952 NZD
$1,100 USD
As of October 31, 2026
Save $7,783 NZD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,735 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.74ct lab-grown radiant diamond

This 1.74ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487108318 or 487108318. Listed at 10 retailers as of October 31, 2026, with prices from $1,952 to $9,735, a $7,783 spread on the same certified stone. MOH London lists it at $9,735. 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

1.74
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487108318
Dimensions7.98 × 6.03 × 4.07 mm
L/W Ratio1.32
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
7.98 mm6.03 mm1.74 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487108318
Side View
Table 65.5%Crown 45.2°Girdle: MED-STKPavilion 31.9°Culet: NoneDepth 67.5%

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: Oct 31
Current: $9,735 NZD|Low: $1,952 NZD|High: $9,852 NZD|Avg: $4,774 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$1,952 NZD
Retailer 5$2,938 NZD
Retailer 9$3,197 NZD
Retailer 6$3,408 NZD
Retailer 10$3,708 NZD
Retailer 3$3,718 NZD
Retailer 11$4,576 NZD
Retailer 7$5,357 NZD
Retailer 4$5,876 NZD
Retailer 8$6,389 NZD
MOH London$9,735 NZD

17 data points across 11 retailers

10 retailers$1,952 NZD to $9,735 NZD

A
Cheapest Retailer
-
$1,952 NZD
$1,100 USD
B+
Retailer 2
-
$2,938 NZD
$1,656 USD
View
B+
Retailer 3
-
$3,197 NZD
$1,802 USD
View
Retailer 4
-
$3,408 NZD
$1,921 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$3,408 NZD
$1,921 USD
View
B+
Retailer 6
-
$3,708 NZD
$2,090 USD
View
B
Retailer 7
-
$5,357 NZD
$3,019 USD
View
B
Retailer 8
-
$5,876 NZD
$3,312 USD
View
B
Retailer 9
-
$6,389 NZD
$3,601 USD
View
Most Expensive
B
MOH London
LG487108318 · Nov 1
$9,735 NZD
£4,320 GBP
View
9 more retailers have this diamond
Prices start from $1,952 NZDSave up to $7,783 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
1.74ct Radiant
$1,952 NZD