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Cushion|Lab Grown|IGI

1.00ct D SI2 Cushion Lab Grown Diamond

GD • D/SI2 • IGI LG500148231

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG500148231

Diamond specifications and retailer prices

From $335 AUD
As of November 6, 2026
Save $1,283 AUD (79%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,617 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG500148231 or 500148231. Listed at 6 retailers as of November 5, 2026, with prices from $335 to $1,617, a $1,283 spread on the same certified stone. MOH London lists it at $1,617. 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

1.00
Carat
D
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.1°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500148231
Dimensions6.19 × 5.65 × 3.42 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.19 mm5.65 mm1.00 ctD / SI2
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG500148231
Side View
Table 59.0%Crown 29.1°Girdle: STK-THKPavilion 32.4°Culet: NoneDepth 60.5%

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 6
Current: $1,617 AUD|Low: $335 AUD|High: $1,641 AUD|Avg: $799 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$335 AUD
Retailer 3$582 AUD
Retailer 4$636 AUD
Retailer 2$744 AUD
Retailer 5$819 AUD
MOH London$1,617 AUD

43 data points across 6 retailers

6 retailers$335 AUD to $1,617 AUD

B+
Cheapest Retailer
-
$335 AUD
B+
Retailer 2
-
$582 AUD
View
B+
Retailer 3
-
$636 AUD
View
B
Retailer 4
-
$744 AUD
View
B
Retailer 5
-
$819 AUD
View
Most Expensive
C
MOH London
LG500148231 · Nov 5
$1,617 AUD
£875 GBP
View
5 more retailers have this diamond
Prices start from $335 AUDSave up to $1,283 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+
1.00ct Cushion
$335 AUD