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Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

VG • H/SI1 • IGI LG436045180

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436045180

Diamond specifications and retailer prices

From $2,010 NZD
As of November 5, 2026
Save $7,334 NZD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,344 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG436045180 or 436045180. Listed at 11 retailers as of November 5, 2026, with prices from $2,010 to $9,344, a $7,334 spread on the same certified stone. MOH London lists it at $9,344. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045180
Dimensions7.27 × 7.21 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.27 mm7.21 mm1.50 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045180
Side View
Table 55.0%Crown 35.1°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 62.8%

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 5
Current: $9,344 NZD|Low: $2,010 NZD|High: $9,495 NZD|Avg: $4,339 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2$2,010 NZD
Retailer 4$2,828 NZD
Retailer 7$3,168 NZD
Retailer 5$3,280 NZD
Retailer 10$3,423 NZD
Retailer 8$3,584 NZD
Retailer 9$4,408 NZD
Retailer 6$5,162 NZD
Retailer 3$5,801 NZD
MOH London$9,344 NZD

17 data points across 10 retailers

11 retailers$2,010 NZD to $9,344 NZD

A
Cheapest Retailer
-
$2,010 NZD
B+
Retailer 2
-
$2,828 NZD
View
B
Retailer 3
-
$3,077 NZD
View
B
Retailer 4
-
$3,168 NZD
View
Final sale: no returns
B
Retailer 5
-
$3,280 NZD
View
Retailer 6
-
$3,280 NZD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$3,584 NZD
View
B
Retailer 8
-
$5,162 NZD
View
B
Retailer 9
-
$5,801 NZD
View
B
Retailer 10
-
$6,150 NZD
View
Most Expensive
B
MOH London
LG436045180 · Nov 5
$9,344 NZD
£4,136 GBP
View
10 more retailers have this diamond
Prices start from $2,010 NZDSave up to $7,334 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
1.50ct Round
$2,010 NZD