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Cushion|Lab Grown|IGI

1.45ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG685501147

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG685501147

Diamond specifications and retailer prices

From $244 USD
As of November 4, 2026
Save $1,486 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,730 USD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.45ct lab-grown cushion diamond

This 1.45ct 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 LG685501147 or 685501147. Listed at 15 retailers as of November 3, 2026, with prices from $244 to $1,730, a $1,486 spread on the same certified stone. Brilliant Earth lists it at $1,730. 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

1.45
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685501147
Dimensions6.39 × 6.39 × 4.43 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
6.39 mm6.39 mm1.45 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685501147
Side View
Table 58.0%Crown 37.1°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 69.3%

Caratlytics Score

How it works →
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: $1,730 USD|Low: $244 USD|High: $1,880 USD|Avg: $685 USD|-8.0%
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 4, 2026
Retailer 3$244 USD
Retailer 12$271 USD
Retailer 11$365 USD
Retailer 6$468 USD
Retailer 7$492 USD
Retailer 2$498 USD
Retailer 4$638 USD
Retailer 5$663 USD
Retailer 10$687 USD
Retailer 9$890 USD
Retailer 8$1,092 USD
Brilliant Earth$1,730 USD

42 data points across 12 retailers

15 retailers$244 USD to $1,730 USD

A
Cheapest Retailer
-
$244 USD
Final sale: no returns
Retailer 2
-
$271 USD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
$365 USD
View
A
Retailer 4
-
$468 USD
View
A
Retailer 5
-
$492 USD
View
A
Retailer 6
-
$498 USD
View
B+
Retailer 7
-
$638 USD
View
B+
Retailer 8
-
$663 USD
View
B+
Retailer 9
-
$687 USD
View
Retailer 10
-
$890 USD
View
Price last confirmed 17 days ago
B
Retailer 11
-
$924 USD
View
Retailer 12
-
$939 USD
View
Price last confirmed 88 days ago
B
Retailer 13
-
$1,092 USD
View
B
Retailer 14
-
$1,253 USD
View
Most Expensive
B
Brilliant Earth
21312028A · Nov 3
$1,730 USD
View
14 more retailers have this diamond
Prices start from $244 USDSave up to $1,486 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
1.45ct Cushion
$244 USD