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Emerald|Lab Grown|IGI

1.51ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG506191309

Shape and cutting style on the report: Emerald cut

Certificate IGI LG506191309

Diamond specifications and retailer prices

From $1,514 AUD
As of November 4, 2026
Save $3,043 AUD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,830 AUD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506191309 or 506191309. Listed at 12 retailers as of November 4, 2026, with a 201% 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

1.51
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle27.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506191309
Dimensions7.73 × 5.55 × 3.59 mm
L/W Ratio1.39
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
7.73 mm5.55 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG506191309
Side View
Table 68.5%Crown 27.1°Girdle: MED-STKPavilion 41.2°Culet: LNGDepth 64.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,830 AUD|Low: $1,514 AUD|High: $7,457 AUD|Avg: $3,415 AUD
NZ Jewellers
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 6$1,514 AUD
Retailer 8$2,221 AUD
Retailer 12$2,417 AUD
Retailer 3$2,486 AUD
Retailer 9$2,577 AUD
Retailer 11$2,577 AUD
Retailer 4$2,821 AUD
Retailer 2$3,604 AUD
Retailer 10$4,056 AUD
Retailer 7$4,557 AUD
NZ Jewellers$4,830 AUD
Retailer 5$7,338 AUD

44 data points across 12 retailers

12 retailers$1,514 AUD to $4,557 AUD

B+
Cheapest Retailer
-
$1,514 AUD
B
Retailer 2
-
$2,221 AUD
View
B
Retailer 3
-
$2,417 AUD
View
B
Retailer 4
-
$2,486 AUD
View
Final sale: no returns
B
Retailer 5
-
$2,577 AUD
View
Retailer 6
-
$2,577 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,821 AUD
View
B
Retailer 8
-
$3,604 AUD
View
B
Retailer 9
-
$4,056 AUD
View
B
Retailer 10
-
$4,557 AUD
View
Most Expensive
NZ Jewellers
7d4b631f-407d-419f-847b-ce89cda3a4ab · Nov 6
$4,830 AUD
$3,381 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,514 AUDSave up to $3,043 AUD

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.

B+
1.51ct Emerald
$1,514 AUD