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Emerald|Lab Grown|IGI

0.51ct E SI1 Emerald Lab Grown Diamond

GD • E/SI1 • IGI LG553217872

Shape and cutting style on the report: Emerald cut

Certificate IGI LG553217872

Diamond specifications and retailer prices

From $149 AUD
As of November 6, 2026
Save $513 AUD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,696 AUD at MOH London · As of November 5, 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 standard cut grade and certified by IGI LG553217872 or 553217872. Listed at 15 retailers as of November 4, 2026, with a 345% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.7°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG553217872
Dimensions5.46 × 3.88 × 2.44 mm
L/W Ratio1.41
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
5.46 mm3.88 mm0.51 ctE / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG553217872
Side View
Table 70.0%Crown 32.7°Girdle: MediumPavilion 36.4°Culet: LNGDepth 62.9%

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 6
Current: $1,696 AUD|Low: $143 AUD|High: $1,722 AUD|Avg: $472 AUD|-0.3%
MOH London
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
November 6, 2026
Retailer 14$149 AUD
Retailer 10$166 AUD
Retailer 8$173 AUD
Retailer 3$197 AUD
Retailer 6$197 AUD
Retailer 9$236 AUD
Retailer 4$370 AUD
Retailer 2$410 AUD
Retailer 12$491 AUD
Retailer 15$497 AUD
Retailer 7$514 AUD
Retailer 5$656 AUD
Retailer 11$659 AUD
Retailer 13$661 AUD
MOH London$1,696 AUD

45 data points across 15 retailers

15 retailers$149 AUD to $661 AUD

B+
Cheapest Retailer
-
$149 AUD
B+
Retailer 2
-
$166 AUD
View
Final sale: no returns
B+
Retailer 3
-
$173 AUD
View
B+
Retailer 4
-
$197 AUD
View
Retailer 5
-
$197 AUD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$236 AUD
View
B
Retailer 7
-
$370 AUD
View
B
Retailer 8
-
$410 AUD
View
B
Retailer 9
-
$491 AUD
View
B
Retailer 10
-
$497 AUD
View
B
Retailer 11
-
$514 AUD
View
B
Retailer 12
-
$656 AUD
View
C
Retailer 13
-
$659 AUD
View
B
Retailer 14
-
$661 AUD
View
Most Expensive
MOH London
LG553217872 · Nov 5
$1,696 AUD
£935 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $149 AUDSave up to $513 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+
0.51ct Emerald
$149 AUD