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Emerald|Lab Grown|IGI

1.51ct I VS1 Emerald Lab Grown Diamond

ID • I/VS1 • IGI LG621455172

Shape and cutting style on the report: Emerald cut

Certificate IGI LG621455172

Diamond specifications and retailer prices

From $814 NZD
As of November 5, 2026
Save $1,581 NZD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,395 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG621455172 or 621455172. Listed at 7 retailers as of November 4, 2026, with prices from $814 to $2,395, a $1,581 spread on the same certified stone. Brilliant Earth lists it at $2,395. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621455172
Dimensions8.45 × 5.23 × 3.40 mm
L/W Ratio1.62
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.45 mm5.23 mm1.51 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621455172
Side View
Table 65.0%Crown 38.8°Girdle: MediumPavilion 39.4°Culet: LNGDepth 65.0%

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: Nov 5
Current: $2,395 NZD|Low: $814 NZD|High: $2,484 NZD|Avg: $1,395 NZD|-3.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4$814 NZD
Retailer 3$896 NZD
Retailer 5$907 NZD
Retailer 6$1,114 NZD
Retailer 7$1,430 NZD
Retailer 8$1,820 NZD
Retailer 2$2,148 NZD
Brilliant Earth$2,395 NZD

20 data points across 8 retailers

7 retailers$814 NZD to $2,395 NZD

A
Cheapest Retailer
-
$814 NZD
Retailer 2
-
$896 NZD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$907 NZD
View
B+
Retailer 4
-
$1,114 NZD
View
B
Retailer 5
-
$1,820 NZD
View
B
Retailer 6
-
$2,148 NZD
View
Most Expensive
B
Brilliant Earth
20918481A · Nov 4
$2,395 NZD
$1,350 USD
View
6 more retailers have this diamond
Prices start from $814 NZDSave up to $1,581 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 Emerald
$814 NZD