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Cushion|Lab Grown|IGI

1.29ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG651441778

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG651441778

Diamond specifications and retailer prices

From $388 AUD
As of November 4, 2026
Save $1,508 AUD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,967 AUD at Brilliant Earth · As of October 19, 2026
View at Brilliant Earth

About this 1.29ct lab-grown cushion diamond

This 1.29ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG651441778 or 651441778. Listed at 15 retailers as of November 4, 2026, with a 389% 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

1.29
Carat
D
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651441778
Dimensions6.36 × 6.24 × 4.19 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
6.36 mm6.24 mm1.29 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651441778
Side View
Table 64.0%Crown 35.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 67.1%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $1,967 AUD|Low: $334 AUD|High: $2,024 AUD|Avg: $1,012 AUD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 4, 2026
Retailer 9$388 AUD
Retailer 2$572 AUD
Retailer 15$630 AUD
Retailer 13$707 AUD
Retailer 10$721 AUD
Retailer 6$754 AUD
Retailer 12$764 AUD
Retailer 5$864 AUD
Retailer 4$999 AUD
Retailer 3$1,033 AUD
Retailer 7$1,142 AUD
Retailer 8$1,454 AUD
Retailer 14$1,641 AUD
Retailer 11$1,896 AUD
Brilliant Earth$1,967 AUD

39 data points across 15 retailers

15 retailers$388 AUD to $1,896 AUD

A
Cheapest Retailer
-
$388 AUD
Final sale: no returns
B+
Retailer 2
-
$572 AUD
View
A
Retailer 3
-
$630 AUD
View
B+
Retailer 4
-
$707 AUD
View
B+
Retailer 5
-
$721 AUD
View
B+
Retailer 6
-
$754 AUD
View
B+
Retailer 7
-
$764 AUD
View
B+
Retailer 8
-
$864 AUD
View
Retailer 9
-
$999 AUD
View
Price last confirmed 8 days ago
Retailer 10
-
$1,033 AUD
View
Price last confirmed 7 days ago
B
Retailer 11
-
$1,142 AUD
View
B
Retailer 12
-
$1,454 AUD
View
B
Retailer 13
-
$1,641 AUD
View
B
Retailer 14
-
$1,896 AUD
View
Most Expensive
Brilliant Earth
11634541A · Oct 19
$1,967 AUD
$1,380 USD
View
Price last confirmed 16 days ago
14 more retailers have this diamond
Prices start from $388 AUDSave up to $1,508 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
1.29ct Cushion
$388 AUD