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Cushion|Lab Grown|IGI

1.25ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG786634356

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG786634356

Diamond specifications and retailer prices

From $443 AUD
As of November 4, 2026
Save $1,772 AUD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,987 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.25ct lab-grown cushion diamond

This 1.25ct 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 top-tier cut grade and certified by IGI LG786634356 or 786634356. Listed at 18 retailers as of October 29, 2026, with a 400% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle43.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786634356
Dimensions7.07 × 6.20 × 3.76 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeLarge
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
7.07 mm6.20 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786634356
Side View
Table 60.0%Crown 32.7°Girdle: MED-THKPavilion 43.2°Culet: LargeDepth 60.6%

Caratlytics Score

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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: $1,351 AUD|Low: $426 AUD|High: $2,229 AUD|Avg: $1,117 AUD|+1.3%
Retailer 1
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
November 4, 2026
Retailer 12$443 AUD
Retailer 8$495 AUD
Retailer 5$515 AUD
Retailer 3$550 AUD
Retailer 14$550 AUD
Retailer 13$741 AUD
Retailer 10$770 AUD
Retailer 7$969 AUD
Retailer 1$1,351 AUD
Retailer 11$1,689 AUD
Retailer 4$1,765 AUD
Retailer 2$1,768 AUD
Retailer 6$2,128 AUD
Retailer 9$2,215 AUD

44 data points across 14 retailers

18 retailers$443 AUD to $2,215 AUD

A
Cheapest Retailer
-
$443 AUD
A
Retailer 2
-
$495 AUD
View
Final sale: no returns
A
Retailer 3
-
$515 AUD
View
Retailer 4
-
$550 AUD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$550 AUD
View
A
Retailer 6
-
$741 AUD
View
B+
Retailer 7
-
$756 AUD
View
B+
Retailer 8
-
$770 AUD
View
B+
Retailer 9
-
$969 AUD
View
B+
Retailer 10
-
$1,351 AUD
View
B
Retailer 11
-
$1,689 AUD
View
B
Retailer 12
-
$1,765 AUD
View
B
Retailer 13
-
$1,768 AUD
View
B
Retailer 14
-
$1,833 AUD
View
B
Retailer 15
-
$2,128 AUD
View
B
Retailer 16
-
$2,207 AUD
View
B
Retailer 17
-
$2,215 AUD
View
Most Expensive
Queensmith
LG786634356 · Oct 27
$2,987 AUD
£1,650 GBP
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from $443 AUDSave up to $1,772 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
1.25ct Cushion
$443 AUD