CaratHunter
Plans
Marquise|Lab Grown|IGI

1.51ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG570370349

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG570370349

Diamond specifications and retailer prices

From $491 NZD
As of November 4, 2026
Save $2,329 NZD (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,821 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG570370349 or 570370349. Listed at 25 retailers as of October 30, 2026, with prices from $491 to $2,821, a $2,329 spread on the same certified stone. Brilliant Earth lists it at $2,821. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570370349
Dimensions11.72 × 6.01 × 3.79 mm
L/W Ratio1.95
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
11.72 mm6.01 mm1.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570370349
Side View
Table 59.5%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.1%

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 4
Current: $2,821 NZD|Low: $491 NZD|High: $3,601 NZD|Avg: $1,283 NZD|-21.7%
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
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 5, 2026
Retailer 24$491 NZD
Retailer 23$548 NZD
Retailer 8$569 NZD
Retailer 13$608 NZD
Retailer 22$703 NZD
Retailer 21$710 NZD
Retailer 6$860 NZD
Retailer 20$887 NZD
Retailer 2$940 NZD
Retailer 16$1,040 NZD
Retailer 18$1,054 NZD
Retailer 15$1,087 NZD
Retailer 17$1,093 NZD
Retailer 12$1,355 NZD
Retailer 11$1,426 NZD
Retailer 4$1,870 NZD
Retailer 3$1,957 NZD
Retailer 9$2,003 NZD
Retailer 14$2,045 NZD
Retailer 7$2,053 NZD
Retailer 10$2,342 NZD
Retailer 19$2,432 NZD
Retailer 5$2,551 NZD
Brilliant Earth$2,821 NZD

28 data points across 24 retailers

25 retailers$491 NZD to $2,821 NZD

A
Cheapest Retailer
-
$491 NZD
A
Retailer 2
-
$548 NZD
View
Final sale: no returns
A
Retailer 3
-
$569 NZD
View
A
Retailer 4
-
$608 NZD
View
A
Retailer 5
-
$703 NZD
View
A
Retailer 6
-
$710 NZD
View
A
Retailer 7
-
$860 NZD
View
A
Retailer 8
-
$887 NZD
View
A
Retailer 9
-
$940 NZD
View
Retailer 10
-
$1,040 NZD
View
Price last confirmed 7 days ago
A
Retailer 11
-
$1,054 NZD
View
A
Retailer 12
-
$1,087 NZD
View
A
Retailer 13
-
$1,093 NZD
View
B+
Retailer 14
-
$1,355 NZD
View
B+
Retailer 15
-
$1,426 NZD
View
Retailer 16
-
$1,813 NZD
View
Price last confirmed 28 days ago
B
Retailer 17
-
$1,870 NZD
View
B+
Retailer 18
-
$1,957 NZD
View
B
Retailer 19
-
$2,003 NZD
View
B
Retailer 20
-
$2,045 NZD
View
B
Retailer 21
-
$2,053 NZD
View
B
Retailer 22
-
$2,342 NZD
View
B
Retailer 23
-
$2,432 NZD
View
B
Retailer 24
-
$2,551 NZD
View
Most Expensive
B
Brilliant Earth
6979233A · Oct 30
$2,821 NZD
$1,590 USD
View
24 more retailers have this diamond
Prices start from $491 NZDSave up to $2,329 NZD

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
1.51ct Marquise
$491 NZD