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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 $311 USD
As of November 1, 2026
Save $1,785 USD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,096 USD 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 27, 2026, with prices from $311 to $2,096, a $1,785 spread on the same certified stone. Queensmith lists it at $2,096. 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
Color
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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Price History

Last verified: Nov 1
Current: $687 USD|Low: $299 USD|High: $1,565 USD|Avg: $783 USD|+3.2%
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 3, 2026
Retailer 12$311 USD
Retailer 7$347 USD
Retailer 5$361 USD
Retailer 3$386 USD
Retailer 14$386 USD
Retailer 13$520 USD
Retailer 10$540 USD
Retailer 1$687 USD
Retailer 9$941 USD
Retailer 11$1,185 USD
Retailer 4$1,239 USD
Retailer 2$1,240 USD
Retailer 6$1,494 USD
Retailer 8$1,554 USD

44 data points across 14 retailers

18 retailers$311 USD to $2,096 USD

A
Cheapest Retailer
-
$311 USD
A
Retailer 2
-
$347 USD
View
Final sale: no returns
A
Retailer 3
-
$361 USD
View
Retailer 4
-
$386 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$386 USD
View
A
Retailer 6
-
$520 USD
View
B+
Retailer 7
-
$530 USD
View
B+
Retailer 8
-
$540 USD
View
B+
Retailer 9
-
$687 USD
£541 GBP
View
B+
Retailer 10
-
$941 USD
A$1,448 AUD
View
B
Retailer 11
-
$1,185 USD
View
B
Retailer 12
-
$1,239 USD
SGD 1,674 SGD
View
B
Retailer 13
-
$1,240 USD
View
B
Retailer 14
-
$1,286 USD
View
B
Retailer 15
-
$1,494 USD
£1,176 GBP
View
B
Retailer 16
-
$1,548 USD
View
B
Retailer 17
-
$1,554 USD
£1,224 GBP
View
Most Expensive
B
Queensmith
LG786634356 · Oct 27
$2,096 USD
£1,650 GBP
View
17 more retailers have this diamond
Prices start from $311 USDSave up to $1,785 USD

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
$311 USD