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Emerald|Lab Grown|IGI

0.51ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG538286856

Shape and cutting style on the report: Emerald cut

Certificate IGI LG538286856

Diamond specifications and retailer prices

From $177 AUD
$124 USD
As of October 29, 2026
Save $1,179 AUD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,835 AUD at MOH London · As of October 26, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG538286856 or 538286856. Listed at 15 retailers as of October 29, 2026, with a 668% 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle29.3°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538286856
Dimensions5.59 × 3.74 × 2.44 mm
L/W Ratio1.49
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
5.59 mm3.74 mm0.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG538286856
Side View
Table 63.5%Crown 29.3°Girdle: ThickPavilion 33.5°Culet: LNGDepth 65.2%

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: Oct 29
Current: $1,835 AUD|Low: $140 AUD|High: $1,855 AUD|Avg: $505 AUD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 7$177 AUD
Retailer 4$198 AUD
Retailer 12$205 AUD
Retailer 8$233 AUD
Retailer 11$233 AUD
Retailer 5$413 AUD
Retailer 9$423 AUD
Retailer 2$453 AUD
Retailer 3$544 AUD
Retailer 10$706 AUD
Retailer 6$746 AUD
MOH London$1,835 AUD

44 data points across 12 retailers

15 retailers$177 AUD to $1,356 AUD

A
Cheapest Retailer
-
$177 AUD
$124 USD
A
Retailer 2
-
$198 AUD
$139 USD
View
Final sale: no returns
A
Retailer 3
-
$205 AUD
$144 USD
View
A
Retailer 4
-
$233 AUD
$164 USD
View
A
Retailer 5
-
$233 AUD
$164 USD
View
B+
Retailer 6
-
$413 AUD
$290 USD
View
B+
Retailer 7
-
$423 AUD
$297 USD
View
B+
Retailer 8
-
$437 AUD
HK$2,400 HKD
View
B
Retailer 9
-
$453 AUD
£250 GBP
View
B
Retailer 10
-
$544 AUD
$382 USD
View
B
Retailer 11
-
$706 AUD
$496 USD
View
B
Retailer 12
-
$746 AUD
$524 USD
View
B
Retailer 13
-
$787 AUD
$552 USD
View
B
Retailer 14
-
$1,356 AUD
$952 USD
View
Most Expensive
MOH London
LG538286856 · Oct 26
$1,835 AUD
£1,015 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $177 AUDSave up to $1,179 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.

A
0.51ct Emerald
$177 AUD