Cushion|Lab Grown|IGI

1.50ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG794626393

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

Certificate IGI LG794626393

Diamond specifications and retailer prices

From $1,176 USD
€1,120 EUR
As of October 31, 2026
Save $5,667 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,831 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG794626393 or 794626393. Listed at 18 retailers as of October 29, 2026, with a 482% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794626393
Dimensions6.55 × 6.53 × 4.37 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.55 mm6.53 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG794626393
Side View
Table 63.0%Crown 34.4°Girdle: MED-THKPavilion 38.8°Culet: NoneDepth 66.9%

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: Oct 31
Current: $2,374 USD|Low: $1,176 USD|High: $9,563 USD|Avg: $5,586 USD|-73.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 7$1,176 USD
Retailer 1$2,374 USD
Retailer 6$2,540 USD
Retailer 5$3,560 USD
Retailer 4$3,723 USD
Retailer 2$4,055 USD
Retailer 10$4,221 USD
Retailer 9$4,500 USD
Retailer 13$4,890 USD
Retailer 8$4,909 USD
Retailer 3$5,338 USD
Retailer 11$6,843 USD
Retailer 12$9,487 USD

32 data points across 13 retailers

18 retailers$1,176 USD to $6,843 USD

A
Cheapest Retailer
-
$1,176 USD
€1,120 EUR
Retailer 2
-
$2,374 USD
View
Price under review
B
Retailer 3
-
$3,560 USD
View
Retailer 4
-
$3,594 USD
View
Price last confirmed 12 days ago
Final sale: no returns
Retailer 5
-
$3,723 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
$3,880 USD
View
Retailer 7
-
$4,055 USD
View
Price last confirmed 12 days ago
B
Retailer 8
-
$4,221 USD
£3,324 GBP
View
B
Retailer 9
-
$4,500 USD
View
B
Retailer 10
-
$4,890 USD
View
B
Retailer 11
-
$4,909 USD
£3,866 GBP
View
B
Retailer 12
-
$5,338 USD
View
B
Retailer 13
-
$6,447 USD
£5,076 GBP
View
B
Retailer 14
-
$6,843 USD
ZAR 110,542 ZAR
View
Retailer 15
-
$9,487 USD
£7,470 GBP
View
Price under review
Most Expensive
Reve Diamonds
70ADF9C99 · Oct 30
$10,831 USD
View
Price under review
15 more retailers have this diamond
Prices start from $1,176 USDSave up to $5,667 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
1.50ct Cushion
$1,176 USD