Cushion|Lab Grown|IGI

1.54ct I SI1 Cushion Lab Grown Diamond

VG • I/SI1 • IGI LG594313004

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG594313004

Diamond specifications and retailer prices

This diamond has been sold
Last seen: Oct 23, 2026 at HK$2,370 HKD
HK$2,370 HKDlast known price
$302 USD

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG594313004 or 594313004. 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

1.54
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594313004
Dimensions6.73 × 6.71 × 4.56 mm
L/W Ratio1.00
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
6.73 mm6.71 mm1.54 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG594313004
Side View
Table 59.0%Crown 36.5°Girdle: MediumPavilion 40.4°Culet: NoneDepth 68.0%

Caratlytics Score

Price History

Last verified: Oct 23
Current: HK$2,370 HKD|Low: HK$910 HKD|High: HK$9,690 HKD|Avg: HK$5,425 HKD|-75.5%
Adiamor
B2C Jewels
Loose Grown Diamond
Nova Diamonds
September 7, 2026
AdiamorHK$2,370 HKD
Loose Grown DiamondHK$2,668 HKD
B2C JewelsHK$4,315 HKD
Nova DiamondsHK$6,198 HKD

38 data points across 4 retailers

Historical Listings

Adiamor
D-81433994 · Oct 23
HK$2,370 HKD
$302 USD
View
Loose Grown Diamond
594313004 · Aug 14
HK$2,668 HKD
$340 USD
View
B2C Jewels
26933217 · Aug 8
HK$4,315 HKD
$550 USD
View
Nova Diamonds
CC5312697 · May 18
HK$6,198 HKD
£622 GBP
View

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1.54ct I SI1 Cushion Lab-Grown Diamond (Sold), IGI LG594313004