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Emerald|Lab Grown|IGI

0.51ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG530293054

Shape and cutting style on the report: Emerald cut

Certificate IGI LG530293054

Diamond specifications and retailer prices

From $221 NZD
As of November 6, 2026
Save $710 NZD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,302 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown emerald diamond

This 0.51ct lab-grown emerald sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG530293054 or 530293054. Listed at 13 retailers as of November 4, 2026, with a 322% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle23.6°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530293054
Dimensions5.03 × 3.88 × 2.44 mm
L/W Ratio1.30
Culet sizeLarge
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
5.03 mm3.88 mm0.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG530293054
Side View
Table 68.5%Crown 23.6°Girdle: THK-VTKPavilion 35.2°Culet: LargeDepth 62.9%

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: $2,302 NZD|Low: $212 NZD|High: $2,316 NZD|Avg: $620 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$221 NZD
Retailer 4$247 NZD
Retailer 12$256 NZD
Retailer 8$292 NZD
Retailer 11$292 NZD
Retailer 9$525 NZD
Retailer 2$564 NZD
Retailer 5$569 NZD
Retailer 3$680 NZD
Retailer 10$881 NZD
Retailer 6$930 NZD
MOH London$2,302 NZD

46 data points across 12 retailers

13 retailers$221 NZD to $930 NZD

A
Cheapest Retailer
-
$221 NZD
A
Retailer 2
-
$247 NZD
View
Final sale: no returns
A
Retailer 3
-
$256 NZD
View
Retailer 4
-
$292 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$292 NZD
View
B+
Retailer 6
-
$525 NZD
View
B
Retailer 7
-
$564 NZD
View
B
Retailer 8
-
$569 NZD
View
B+
Retailer 9
-
$591 NZD
View
B
Retailer 10
-
$680 NZD
View
B
Retailer 11
-
$881 NZD
View
B
Retailer 12
-
$930 NZD
View
Most Expensive
MOH London
LG530293054 · Oct 29
$2,302 NZD
£1,019 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $221 NZDSave up to $710 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
0.51ct Emerald
$221 NZD