CaratHunter
Plans
Marquise|Lab Grown|IGI

1.56ct F IF Marquise Lab Grown Diamond

ID • F/IF • IGI LG628451202

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG628451202

Diamond specifications and retailer prices

From $1,084 USD
As of November 6, 2026
Save $1,216 USD (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,300 USD at Brilliant Earth · As of November 4, 2026
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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628451202 or 628451202. Listed at 6 retailers as of November 4, 2026, with prices from $1,084 to $2,300, a $1,216 spread on the same certified stone. Brilliant Earth lists it at $2,300. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628451202
Dimensions11.83 × 6.13 × 3.84 mm
L/W Ratio1.93
Girdle conditionFaceted
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
11.83 mm6.13 mm1.56 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628451202
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $2,300 USD|Low: $680 USD|High: $3,304 USD|Avg: $1,638 USD
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
Retailer 19
October 21, 2026
Retailer 16$680 USD
Retailer 11$819 USD
Retailer 4$880 USD
Retailer 18$964 USD
Retailer 5$1,010 USD
Retailer 2$1,084 USD
Retailer 14$1,119 USD
Retailer 7$1,170 USD
Retailer 13$1,172 USD
Retailer 3$1,264 USD
Retailer 9$1,693 USD
Retailer 8$1,782 USD
Retailer 6$2,042 USD
Retailer 12$2,280 USD
Brilliant Earth$2,300 USD
Retailer 17$2,378 USD
Retailer 10$2,434 USD
Retailer 19$2,514 USD
Retailer 15$3,304 USD

9 data points across 19 retailers

6 retailers$1,084 USD to $2,300 USD

Retailer 1
-
$743 USD
Price last confirmed 42 days ago
Retailer 2
-
$819 USD
View
Price last confirmed 63 days ago
A
Retailer 3
-
$1,084 USD
View
Retailer 4
-
$1,782 USD
View
Price last confirmed 95 days ago
Retailer 5
-
$2,280 USD
View
Price last confirmed 41 days ago
Most Expensive
B+
Brilliant Earth
14067436A · Nov 4
$2,300 USD
View
5 more retailers have this diamond
Prices start from $1,084 USDSave up to $1,216 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 Marquise
$1,084 USD