CaratHunter
Plans
Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

GD • H/SI1 • IGI LG425067155

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425067155

Diamond specifications and retailer prices

From $1,857 AUD
As of November 5, 2026
Save $5,646 AUD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,504 AUD 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 standard cut grade and certified by IGI LG425067155 or 425067155. Listed at 11 retailers as of November 5, 2026, with prices from $1,857 to $7,504, a $5,646 spread on the same certified stone. MOH London lists it at $7,504. 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
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067155
Dimensions7.36 × 7.30 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) process Type IIa
Top View
7.36 mm7.30 mm1.50 ctH / SI1
OriginLab Grown
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI LG425067155
Side View
Table 53.0%Crown 33.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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 5
Current: $7,504 AUD|Low: $1,857 AUD|High: $7,625 AUD|Avg: $3,500 AUD|-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 4$1,857 AUD
Retailer 3$2,271 AUD
Retailer 7$2,541 AUD
Retailer 5$2,634 AUD
Retailer 10$2,748 AUD
Retailer 8$2,878 AUD
Retailer 9$3,540 AUD
Retailer 6$4,146 AUD
Retailer 2$4,658 AUD
MOH London$7,504 AUD

14 data points across 10 retailers

11 retailers$1,857 AUD to $7,504 AUD

B+
Cheapest Retailer
-
$1,857 AUD
B
Retailer 2
-
$2,271 AUD
View
B
Retailer 3
-
$2,471 AUD
View
B
Retailer 4
-
$2,541 AUD
View
Final sale: no returns
Retailer 5
-
$2,634 AUD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$2,634 AUD
View
B
Retailer 7
-
$2,878 AUD
View
C
Retailer 8
-
$4,146 AUD
View
C
Retailer 9
-
$4,658 AUD
View
C
Retailer 10
-
$4,938 AUD
View
Most Expensive
C
MOH London
LG425067155 · Nov 5
$7,504 AUD
£4,136 GBP
View
10 more retailers have this diamond
Prices start from $1,857 AUDSave up to $5,646 AUD

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+
1.50ct Round
$1,857 AUD