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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 $317 SGD
$248 USD
As of October 30, 2026
Save $1,299 SGD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,659 SGD 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
Colour
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: $2,659 SGD|Low: $317 SGD|High: $2,659 SGD|Avg: $791 SGD
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 31, 2026
Retailer 4$317 SGD
Retailer 12$353 SGD
Retailer 5$473 SGD
Retailer 7$570 SGD
Retailer 9$605 SGD
Retailer 6$654 SGD
Retailer 3$773 SGD
Retailer 10$823 SGD
Retailer 2$860 SGD
Retailer 11$1,316 SGD
Retailer 8$1,419 SGD
Brilliant Earth$2,659 SGD

45 data points across 12 retailers

18 retailers$317 SGD to $1,616 SGD

A
Cheapest Retailer
-
$317 SGD
$248 USD
Final sale: no returns
A
Retailer 2
-
$353 SGD
$276 USD
View
B+
Retailer 3
-
$473 SGD
$370 USD
View
A
Retailer 4
-
$570 SGD
€425 EUR
View
A
Retailer 5
-
$605 SGD
ZAR 7,647 ZAR
View
A
Retailer 6
-
$654 SGD
£403 GBP
View
B+
Retailer 7
-
$685 SGD
$536 USD
View
B+
Retailer 8
-
$719 SGD
$562 USD
View
B+
Retailer 9
-
$773 SGD
$605 USD
View
B+
Retailer 10
-
$823 SGD
A$990 AUD
View
B
Retailer 11
-
$860 SGD
$673 USD
View
B
Retailer 12
-
$1,200 SGD
$938 USD
View
B
Retailer 13
-
$1,316 SGD
A$1,584 AUD
View
B
Retailer 14
-
$1,415 SGD
$1,107 USD
View
B
Retailer 15
-
$1,419 SGD
£874 GBP
View
Retailer 16
-
$1,518 SGD
$1,187 USD
View
Price last confirmed 82 days ago
B
Retailer 17
-
$1,616 SGD
$1,264 USD
View
Most Expensive
Brilliant Earth
16031645A · Oct 18
$2,659 SGD
$2,080 USD
View
Price last confirmed 12 days ago
17 more retailers have this diamond
Prices start from $317 SGDSave up to $1,299 SGD

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
$317 SGD