Cushion|Lab Grown|IGI

1.29ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG660480092

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG660480092

Diamond specifications and retailer prices

From $221 USD
As of November 6, 2026
Save $965 USD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,380 USD at Brilliant Earth · As of October 22, 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 very-good cut grade and certified by IGI LG660480092 or 660480092. Listed at 17 retailers as of November 6, 2026, with a 437% 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
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660480092
Dimensions5.79 × 5.79 × 4.00 mm
L/W Ratio1.00
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
5.79 mm5.79 mm1.29 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660480092
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 69.1%

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 6
Current: $1,380 USD|Low: $221 USD|High: $1,380 USD|Avg: $572 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 4$221 USD
Retailer 3$245 USD
Retailer 9$415 USD
Retailer 7$444 USD
Retailer 8$448 USD
Retailer 2$563 USD
Retailer 10$597 USD
Retailer 11$611 USD
Retailer 12$730 USD
Retailer 5$905 USD
Retailer 6$1,139 USD
Brilliant Earth$1,380 USD

44 data points across 12 retailers

17 retailers$221 USD to $1,186 USD

A
Cheapest Retailer
-
$221 USD
Final sale: no returns
A
Retailer 2
-
$245 USD
View
B+
Retailer 3
-
$330 USD
View
A
Retailer 4
-
$415 USD
View
A
Retailer 5
-
$444 USD
View
A
Retailer 6
-
$448 USD
View
B+
Retailer 7
-
$517 USD
View
B+
Retailer 8
-
$563 USD
View
B+
Retailer 9
-
$597 USD
View
B+
Retailer 10
-
$611 USD
View
Retailer 11
-
$730 USD
View
Price last confirmed 33 days ago
Retailer 12
-
$739 USD
View
Price last confirmed 90 days ago
B
Retailer 13
-
$841 USD
View
B
Retailer 14
-
$905 USD
View
B
Retailer 15
-
$1,139 USD
View
B
Retailer 16
-
$1,186 USD
View
Most Expensive
Brilliant Earth
21311943A · Oct 22
$1,380 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from $221 USDSave up to $965 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
1.29ct Cushion
$221 USD