Radiant|Lab Grown|IGI

1.56ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818681522

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG818681522

Diamond specifications and retailer prices

From $795 USD
As of October 31, 2026
Save $3,945 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,740 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681522 or 818681522. Listed at 14 retailers as of October 31, 2026, with prices from $795 to $4,740, a $3,945 spread on the same certified stone. Do Amore Diamonds lists it at $4,740. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681522
Dimensions8.33 × 5.75 × 3.95 mm
L/W Ratio1.45
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
8.33 mm5.75 mm1.56 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681522
Side View
Table 63.0%Crown 40°Girdle: Slightly ThickPavilion 36.5°Culet: NoneDepth 68.7%

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: $4,740 USD|Low: $725 USD|High: $5,150 USD|Avg: $2,467 USD
Do Amore Diamonds
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 9$795 USD
Retailer 12$914 USD
Retailer 10$1,024 USD
Retailer 7$1,131 USD
Retailer 2$1,173 USD
Retailer 11$1,709 USD
Retailer 3$2,303 USD
Retailer 6$3,192 USD
Retailer 5$3,360 USD
Retailer 4$3,379 USD
Retailer 8$3,705 USD
Do Amore Diamonds$4,740 USD

29 data points across 12 retailers

14 retailers$795 USD to $4,740 USD

Retailer 1
-
$576 USD
Price last confirmed 15 days ago
Retailer 2
-
$645 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$795 USD
View
A
Retailer 4
-
$914 USD
View
A
Retailer 5
-
$1,018 USD
View
A
Retailer 6
-
$1,024 USD
View
B+
Retailer 7
-
$1,173 USD
€1,117 EUR
View
B+
Retailer 8
-
$1,709 USD
View
Retailer 9
-
$1,879 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$2,303 USD
View
Price last confirmed 15 days ago
B
Retailer 11
-
$3,192 USD
£2,513 GBP
View
B
Retailer 12
-
$3,360 USD
View
B
Retailer 13
-
$3,705 USD
View
Most Expensive
B
Do Amore Diamonds
27-4BFC466F1 · Oct 31
$4,740 USD
View
13 more retailers have this diamond
Prices start from $795 USDSave up to $3,945 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 Radiant
$795 USD