CaratHunter
Plans
Marquise|Lab Grown|IGI

1.55ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG831685142

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831685142

Diamond specifications and retailer prices

From $638 USD
As of November 6, 2026
Save $2,844 USD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,482 USD at Novita Diamonds · As of October 31, 2026
View at Novita Diamonds

About this 1.55ct lab-grown marquise diamond

This 1.55ct 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 LG831685142 or 831685142. Listed at 17 retailers as of October 31, 2026, with prices from $638 to $3,482, a $2,844 spread on the same certified stone. Novita Diamonds lists it at $3,482. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831685142
Dimensions11.98 × 6.10 × 3.72 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizeNone
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
11.98 mm6.10 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831685142
Side View
Table 61.0%Crown 34.6°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 61.0%

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: $3,482 USD|Low: $623 USD|High: $3,482 USD|Avg: $1,669 USD
Novita Diamonds
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
November 6, 2026
Retailer 11$638 USD
Retailer 6$694 USD
Retailer 14$744 USD
Retailer 8$825 USD
Retailer 10$1,064 USD
Retailer 13$1,091 USD
Retailer 16$1,095 USD
Retailer 5$1,146 USD
Retailer 7$1,190 USD
Retailer 4$1,492 USD
Retailer 17$1,619 USD
Retailer 12$1,863 USD
Retailer 15$2,154 USD
Retailer 2$2,294 USD
Retailer 9$2,800 USD
Retailer 3$3,003 USD
Novita Diamonds$3,482 USD

9 data points across 17 retailers

17 retailers$638 USD to $3,482 USD

A
Cheapest Retailer
-
$638 USD
Final sale: no returns
A
Retailer 2
-
$694 USD
View
A
Retailer 3
-
$744 USD
View
A
Retailer 4
-
$825 USD
View
A
Retailer 5
-
$1,064 USD
View
A
Retailer 6
-
$1,091 USD
View
A
Retailer 7
-
$1,095 USD
View
A
Retailer 8
-
$1,146 USD
View
A
Retailer 9
-
$1,190 USD
View
A
Retailer 10
-
$1,492 USD
View
B+
Retailer 11
-
$1,619 USD
View
B+
Retailer 12
-
$1,863 USD
View
B+
Retailer 13
-
$2,154 USD
View
B+
Retailer 14
-
$2,294 USD
View
B+
Retailer 15
-
$2,800 USD
View
B
Retailer 16
-
$3,003 USD
View
Most Expensive
B
Novita Diamonds
cert_831685142 · Oct 31
$3,482 USD
A$5,357 AUD
View
16 more retailers have this diamond
Prices start from $638 USDSave up to $2,844 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
1.55ct Marquise
$638 USD