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Marquise|Lab Grown|IGI

1.56ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG803651957

Certificate IGI LG803651957

Diamond specifications and retailer prices

From $720 USD
Save $3,500 USD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,220 USD at Brilliant Earth
View at Brilliant Earth

About this 1.56ct lab-grown marquise diamond

This 1.56ct lab-grown marquise 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 LG803651957 or 803651957. Listed at 20 retailers, with prices from $720 to $4,220 at Brilliant Earth, a $3,500 spread on the same certified stone. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803651957
Dimensions11.63 × 6.21 × 3.80 mm
L/W Ratio1.87
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
11.63 mm6.21 mm1.56 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803651957
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $4,220 USD|Low: $545 USD|High: $4,680 USD|Avg: $1,795 USD|-9.8%
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
Retailer 18
October 1, 2026
Retailer 11$720 USD
Retailer 9$920 USD
Retailer 16$948 USD
Retailer 6$1,184 USD
Retailer 8$1,186 USD
Retailer 14$1,187 USD
Retailer 10$1,214 USD
Retailer 17$1,217 USD
Retailer 4$1,342 USD
Retailer 15$1,757 USD
Retailer 3$1,861 USD
Retailer 13$2,316 USD
Retailer 18$2,448 USD
Retailer 2$2,572 USD
Retailer 7$2,820 USD
Retailer 12$3,232 USD
Retailer 5$3,446 USD
Brilliant Earth$4,220 USD

38 data points across 18 retailers

20 retailers$720 USD to $4,220 USD

A
Cheapest Retailer
-
$720 USD
A
Retailer 2
-
$920 USD
View
A
Retailer 3
-
$948 USD
View
A
Retailer 4
-
$1,184 USD
€1,128 EUR
View
A
Retailer 5
-
$1,186 USD
View
A
Retailer 6
-
$1,187 USD
£935 GBP
View
A
Retailer 7
-
$1,214 USD
A$1,868 AUD
View
A
Retailer 8
-
$1,217 USD
View
A
Retailer 9
-
$1,342 USD
ZAR 21,688 ZAR
View
A
Retailer 10
-
$1,757 USD
View
B+
Retailer 11
-
$1,826 USD
View
Price last confirmed 45 days ago
B+
Retailer 12
-
$1,861 USD
A$2,863 AUD
View
B+
Retailer 13
-
$2,316 USD
£1,824 GBP
View
B+
Retailer 14
-
$2,448 USD
View
B+
Retailer 15
-
$2,572 USD
View
B+
Retailer 16
-
$2,667 USD
View
B+
Retailer 17
-
$2,820 USD
View
B
Retailer 18
-
$3,232 USD
£2,545 GBP
View
B
Retailer 19
-
$3,446 USD
A$5,302 AUD
View
Most Expensive
B
Brilliant Earth
21212714A · Sep 29
$4,220 USD
View
19 more retailers have this diamond
Prices start from $720 USDSave up to $3,500 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.

A
1.56ct Marquise
$720 USD