Cushion|Lab Grown|IGI

1.54ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG520292508

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG520292508

Diamond specifications and retailer prices

From $248 USD
As of October 30, 2026
Save $1,016 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,080 USD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG520292508 or 520292508. Listed at 18 retailers as of October 30, 2026, with a 410% 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

1.54
Carat
D
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520292508
Dimensions6.59 × 6.39 × 4.10 mm
L/W Ratio1.03
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
6.59 mm6.39 mm1.54 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520292508
Side View
Table 63.5%Crown 33.7°Girdle: STK-THKPavilion 33.7°Culet: NoneDepth 64.2%

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 30
Current: $2,080 USD|Low: $248 USD|High: $2,080 USD|Avg: $616 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
October 30, 2026
Retailer 4$248 USD
Retailer 12$276 USD
Retailer 6$446 USD
Retailer 2$471 USD
Retailer 8$473 USD
Retailer 5$512 USD
Retailer 3$605 USD
Retailer 9$644 USD
Retailer 11$713 USD
Retailer 10$1,030 USD
Retailer 7$1,110 USD
Brilliant Earth$2,080 USD

45 data points across 12 retailers

18 retailers$248 USD to $1,264 USD

A
Cheapest Retailer
-
$248 USD
Final sale: no returns
A
Retailer 2
-
$276 USD
View
A
Retailer 3
-
$446 USD
€425 EUR
View
B+
Retailer 4
-
$471 USD
View
A
Retailer 5
-
$473 USD
ZAR 7,647 ZAR
View
A
Retailer 6
-
$512 USD
£403 GBP
View
B+
Retailer 7
-
$536 USD
View
B+
Retailer 8
-
$562 USD
View
B+
Retailer 9
-
$605 USD
View
B+
Retailer 10
-
$644 USD
A$990 AUD
View
B
Retailer 11
-
$713 USD
View
B
Retailer 12
-
$938 USD
View
B
Retailer 13
-
$1,030 USD
A$1,584 AUD
View
B
Retailer 14
-
$1,107 USD
View
B
Retailer 15
-
$1,110 USD
£874 GBP
View
Retailer 16
-
$1,187 USD
View
Price last confirmed 81 days ago
B
Retailer 17
-
$1,264 USD
View
Most Expensive
Brilliant Earth
16031645A · Oct 18
$2,080 USD
View
Price last confirmed 11 days ago
17 more retailers have this diamond
Prices start from $248 USDSave up to $1,016 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
1.54ct Cushion
$248 USD