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Cushion|Lab Grown|IGI

1.54ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG836682121

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836682121

Diamond specifications and retailer prices

From $552 USD
As of November 1, 2026
Save $2,938 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,490 USD at Brilliant Earth · As of October 31, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836682121 or 836682121. Listed at 18 retailers as of October 31, 2026, with prices from $552 to $3,490, a $2,938 spread on the same certified stone. Brilliant Earth lists it at $3,490. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836682121
Dimensions7.95 × 5.90 × 3.91 mm
L/W Ratio1.35
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
7.95 mm5.90 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836682121
Side View
Table 62.0%Crown 35.7°Girdle: MED-STKPavilion 32.6°Culet: NoneDepth 66.3%

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 1
Current: $3,490 USD|Low: $552 USD|High: $4,480 USD|Avg: $1,775 USD|-22.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 7$552 USD
Retailer 2$646 USD
Retailer 13$750 USD
Retailer 12$916 USD
Retailer 11$1,016 USD
Retailer 10$1,054 USD
Retailer 8$1,111 USD
Retailer 16$1,424 USD
Retailer 15$1,426 USD
Retailer 6$1,937 USD
Retailer 9$1,992 USD
Retailer 4$2,128 USD
Retailer 5$2,131 USD
Retailer 14$2,474 USD
Retailer 17$2,565 USD
Retailer 3$2,640 USD
Brilliant Earth$3,490 USD

42 data points across 17 retailers

18 retailers$552 USD to $3,490 USD

A
Cheapest Retailer
-
$552 USD
Final sale: no returns
A
Retailer 2
-
$646 USD
£509 GBP
View
A
Retailer 3
-
$750 USD
View
A
Retailer 4
-
$820 USD
View
A
Retailer 5
-
$916 USD
€872 EUR
View
A
Retailer 6
-
$1,016 USD
£800 GBP
View
A
Retailer 7
-
$1,054 USD
ZAR 17,029 ZAR
View
A
Retailer 8
-
$1,111 USD
View
A
Retailer 9
-
$1,424 USD
A$2,190 AUD
View
A
Retailer 10
-
$1,426 USD
View
B+
Retailer 11
-
$1,937 USD
SGD 2,617 SGD
View
B+
Retailer 12
-
$1,992 USD
View
B+
Retailer 13
-
$2,128 USD
View
B+
Retailer 14
-
$2,131 USD
View
B+
Retailer 15
-
$2,474 USD
A$3,806 AUD
View
B+
Retailer 16
-
$2,565 USD
£2,020 GBP
View
Retailer 17
-
$2,640 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
22183846A · Oct 31
$3,490 USD
View
17 more retailers have this diamond
Prices start from $552 USDSave up to $2,938 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
$552 USD