Asscher|Lab Grown|IGI

1.56ct D SI1 Asscher Lab Grown Diamond

GD • D/SI1 • IGI LG620421777

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG620421777

Diamond specifications and retailer prices

From $216 USD
As of October 30, 2026
Save $1,064 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,280 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown asscher diamond

This 1.56ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG620421777 or 620421777. Listed at 10 retailers as of October 29, 2026, with prices from $216 to $1,280, a $1,064 spread on the same certified stone. Brilliant Earth lists it at $1,280. 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

1.56
Carat
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421777
Dimensions6.35 × 6.32 × 4.19 mm
L/W Ratio1.00
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
6.35 mm6.32 mm1.56 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421777
Side View
Table 59.0%Crown 32.3°Girdle: Slightly ThickPavilion 42.6°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: $1,280 USD|Low: $216 USD|High: $1,280 USD|Avg: $566 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10$216 USD
Retailer 2$267 USD
Retailer 3$281 USD
Retailer 8$322 USD
Retailer 5$408 USD
Retailer 9$432 USD
Retailer 4$436 USD
Retailer 7$499 USD
Retailer 11$661 USD
Retailer 6$1,124 USD
Brilliant Earth$1,280 USD

40 data points across 11 retailers

10 retailers$216 USD to $1,280 USD

A
Cheapest Retailer
-
$216 USD
Final sale: no returns
A
Retailer 2
-
$267 USD
£210 GBP
View
B+
Retailer 3
-
$322 USD
View
A
Retailer 4
-
$408 USD
€389 EUR
View
B+
Retailer 5
-
$432 USD
£340 GBP
View
A
Retailer 6
-
$436 USD
£343 GBP
View
B+
Retailer 7
-
$499 USD
View
Retailer 8
-
$661 USD
View
Price last confirmed 25 days ago
B
Retailer 9
-
$1,124 USD
£885 GBP
View
Most Expensive
B
Brilliant Earth
11237803A · Oct 29
$1,280 USD
View
9 more retailers have this diamond
Prices start from $216 USDSave up to $1,064 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
1.56ct Asscher
$216 USD