Asscher|Lab Grown|IGI

1.51ct D IF Asscher Lab Grown Diamond

ID • D/IF • IGI LG821609617

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG821609617

Diamond specifications and retailer prices

From $337 USD
As of October 30, 2026
Save $4,043 USD (92%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,380 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown asscher diamond

This 1.51ct lab-grown asscher 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 LG821609617 or 821609617. Listed at 20 retailers as of October 30, 2026, with prices from $337 to $4,380, a $4,043 spread on the same certified stone. Brilliant Earth lists it at $4,380. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821609617
Dimensions6.23 × 6.17 × 4.09 mm
L/W Ratio1.01
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
6.23 mm6.17 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821609617
Side View
Table 63.0%Crown 34.2°Girdle: Slightly ThickPavilion 39.3°Culet: NoneDepth 66.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $4,380 USD|Low: $323 USD|High: $4,380 USD|Avg: $1,098 USD
Brilliant Earth
Retailer 2
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Retailer 20
November 1, 2026
Retailer 20$337 USD
Retailer 9$377 USD
Retailer 4$417 USD
Retailer 6$417 USD
Retailer 2$441 USD
Retailer 12$560 USD
Retailer 18$570 USD
Retailer 17$717 USD
Retailer 15$736 USD
Retailer 13$748 USD
Retailer 16$972 USD
Retailer 8$1,022 USD
Retailer 14$1,035 USD
Retailer 11$1,342 USD
Retailer 10$1,385 USD
Retailer 3$1,416 USD
Retailer 7$1,577 USD
Retailer 5$1,629 USD
Retailer 19$1,675 USD
Brilliant Earth$4,380 USD

33 data points across 20 retailers

20 retailers$337 USD to $4,380 USD

A
Cheapest Retailer
-
$337 USD
A
Retailer 2
-
$377 USD
View
Final sale: no returns
A
Retailer 3
-
$417 USD
View
A
Retailer 4
-
$417 USD
View
A
Retailer 5
-
$441 USD
£347 GBP
View
A
Retailer 6
-
$560 USD
View
A
Retailer 7
-
$570 USD
View
A
Retailer 8
-
$717 USD
ZAR 11,585 ZAR
View
A
Retailer 9
-
$736 USD
€701 EUR
View
A
Retailer 10
-
$748 USD
£589 GBP
View
A
Retailer 11
-
$972 USD
A$1,496 AUD
View
B+
Retailer 12
-
$1,022 USD
View
A
Retailer 13
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$1,035 USD
View
B+
Retailer 14
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$1,342 USD
View
B+
Retailer 15
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$1,385 USD
View
Retailer 16
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$1,416 USD
A$2,178 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
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$1,577 USD
View
B+
Retailer 18
-
$1,629 USD
View
B+
Retailer 19
-
$1,675 USD
£1,319 GBP
View
Most Expensive
B
Brilliant Earth
21678993A · Oct 31
$4,380 USD
View
19 more retailers have this diamond
Prices start from $337 USDSave up to $4,043 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
1.51ct Asscher
$337 USD