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Cushion|Lab Grown|IGI

1.00ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG758568453

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG758568453

Diamond specifications and retailer prices

From $408 AUD
As of November 4, 2026
Save $466 AUD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,919 AUD at MOH London · As of October 8, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG758568453 or 758568453. Listed at 7 retailers as of November 3, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle43.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758568453
Dimensions5.95 × 5.78 × 4.00 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.95 mm5.78 mm1.00 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758568453
Side View
Table 66.0%Crown 33.9°Girdle: MED-STKPavilion 43.3°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,919 AUD|Low: $108 AUD|High: $2,134 AUD|Avg: $911 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$108 AUD
Retailer 5$408 AUD
Retailer 12$445 AUD
Retailer 7$460 AUD
Retailer 2$566 AUD
Retailer 11$587 AUD
Retailer 6$757 AUD
Retailer 3$873 AUD
Retailer 8$1,579 AUD
MOH London$1,919 AUD
Retailer 10$2,067 AUD
Retailer 9$2,134 AUD

14 data points across 12 retailers

7 retailers$408 AUD to $873 AUD

A
Cheapest Retailer
-
$408 AUD
Retailer 2
-
$445 AUD
View
Price last confirmed 29 days ago
A
Retailer 3
-
$460 AUD
View
B+
Retailer 4
-
$566 AUD
View
B+
Retailer 5
-
$757 AUD
View
B
Retailer 6
-
$873 AUD
View
Most Expensive
MOH London
LG758568453 · Oct 8
$1,919 AUD
£1,038 GBP
View
Price last confirmed 29 days ago
6 more retailers have this diamond
Prices start from $408 AUDSave up to $466 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.

A
1.00ct Cushion
$408 AUD