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Cushion|Lab Grown|IGI

1.26ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG803659488

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

Certificate IGI LG803659488

Diamond specifications and retailer prices

From $247 USD
As of October 29, 2026
Save $1,093 USD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,340 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.26ct lab-grown cushion diamond

This 1.26ct 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 LG803659488 or 803659488. Listed at 14 retailers as of October 28, 2026, with prices from $247 to $1,340, a $1,093 spread on the same certified stone. Brilliant Earth lists it at $1,340. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803659488
Dimensions6.30 × 6.20 × 4.15 mm
L/W Ratio1.02
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
6.30 mm6.20 mm1.26 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803659488
Side View
Table 58.0%Crown 34.5°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 66.9%

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: Oct 29
Current: $1,340 USD|Low: $119 USD|High: $1,340 USD|Avg: $628 USD|+15.5%
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 6$119 USD
Retailer 16$247 USD
Retailer 12$330 USD
Retailer 7$378 USD
Retailer 15$400 USD
Retailer 2$428 USD
Retailer 13$452 USD
Retailer 18$494 USD
Retailer 5$569 USD
Retailer 9$600 USD
Retailer 4$604 USD
Retailer 17$725 USD
Retailer 8$751 USD
Retailer 14$846 USD
Retailer 3$1,156 USD
Retailer 11$1,190 USD
Retailer 10$1,204 USD
Brilliant Earth$1,340 USD

16 data points across 18 retailers

14 retailers$247 USD to $1,340 USD

A
Cheapest Retailer
-
$247 USD
Final sale: no returns
A
Retailer 2
-
$330 USD
£260 GBP
View
A
Retailer 3
-
$400 USD
€381 EUR
View
A
Retailer 4
-
$428 USD
View
A
Retailer 5
-
$452 USD
£356 GBP
View
A
Retailer 6
-
$494 USD
View
B+
Retailer 7
-
$569 USD
View
B+
Retailer 8
-
$604 USD
A$929 AUD
View
B+
Retailer 9
-
$725 USD
View
Retailer 10
-
$751 USD
A$1,155 AUD
View
Price last confirmed 73 days ago
B+
Retailer 11
-
$846 USD
View
B
Retailer 12
-
$1,156 USD
£910 GBP
View
B
Retailer 13
-
$1,190 USD
View
Most Expensive
B
Brilliant Earth
19740798A · Oct 28
$1,340 USD
View
13 more retailers have this diamond
Prices start from $247 USDSave up to $1,093 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
1.26ct Cushion
$247 USD