Cushion|Lab Grown|IGI

1.50ct H SI1 Cushion Lab Grown Diamond

EX • H/SI1 • IGI LG594312984

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG594312984

Diamond specifications and retailer prices

This diamond has been sold
Last seen: Oct 23, 2026 at $497 CAD
$497 CADlast known price
$356 USD

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion 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 LG594312984 or 594312984. 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

1.50
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594312984
Dimensions6.77 × 6.66 × 4.44 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
6.77 mm6.66 mm1.50 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG594312984
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 66.7%

Caratlytics Score

Price History

Last verified: Aug 2
Current: $497 CAD|Low: $156 CAD|High: $1,213 CAD|Avg: $878 CAD|-59.0%
Adiamor
B2C Jewels
Loose Grown Diamond
Nova Diamonds
Rare Carat
August 7, 2026
Loose Grown Diamond$475 CAD
Adiamor$497 CAD
B2C Jewels$767 CAD
Nova Diamonds$965 CAD
Rare Carat$1,061 CAD

37 data points across 5 retailers

Historical Listings

Loose Grown Diamond
594312984 · Aug 2
$475 CAD
$340 USD
View
Adiamor
D-81293248 · Oct 23
$497 CAD
$356 USD
View
B2C Jewels
25364178 · Aug 3
$767 CAD
$549 USD
View
Nova Diamonds
7604FC57D · May 18
$965 CAD
£544 GBP
View
Rare Carat
FC04206 · Jun 29
$1,061 CAD
$760 USD
View
Rare Carat
FC04206_l_594312984 · Jun 1
$1,089 CAD
$780 USD
View

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.

1.50ct H SI1 Cushion Lab-Grown Diamond (Sold), IGI LG594312984