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Emerald|Lab Grown|IGI

0.51ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG674550365

Shape and cutting style on the report: Emerald cut

Certificate IGI LG674550365

Diamond specifications and retailer prices

From $149 AUD
$105 USD
As of October 29, 2026
Save $1,407 AUD (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,557 AUD 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG674550365 or 674550365. Listed at 14 retailers as of October 29, 2026, with prices from $149 to $1,557, a $1,407 spread on the same certified stone. MOH London lists it at $1,557. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674550365
Dimensions5.55 × 3.84 × 2.48 mm
L/W Ratio1.45
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
5.55 mm3.84 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674550365
Side View
Table 59.0%Crown 32.3°Girdle: MediumPavilion 38.1°Culet: LargeDepth 64.6%

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: Oct 29
Current: $1,557 AUD|Low: $144 AUD|High: $1,568 AUD|Avg: $443 AUD|+0.6%
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
October 30, 2026
Retailer 12$149 AUD
Retailer 3$174 AUD
Retailer 11$198 AUD
Retailer 13$198 AUD
Retailer 4$327 AUD
Retailer 2$366 AUD
Retailer 10$372 AUD
Retailer 5$373 AUD
Retailer 7$448 AUD
Retailer 6$514 AUD
Retailer 8$541 AUD
Retailer 14$596 AUD
Retailer 9$665 AUD
MOH London$1,557 AUD

44 data points across 14 retailers

14 retailers$149 AUD to $1,557 AUD

A
Cheapest Retailer
-
$149 AUD
$105 USD
A
Retailer 2
-
$174 AUD
$122 USD
View
A
Retailer 3
-
$198 AUD
$139 USD
View
A
Retailer 4
-
$198 AUD
$139 USD
View
Retailer 5
-
$327 AUD
$230 USD
View
Price last confirmed 23 days ago
B+
Retailer 6
-
$366 AUD
£202 GBP
View
B+
Retailer 7
-
$372 AUD
€249 EUR
View
B+
Retailer 8
-
$373 AUD
$262 USD
View
B+
Retailer 9
-
$448 AUD
£248 GBP
View
B
Retailer 10
-
$514 AUD
$361 USD
View
B
Retailer 11
-
$541 AUD
$380 USD
View
B
Retailer 12
-
$596 AUD
$419 USD
View
B
Retailer 13
-
$665 AUD
$467 USD
View
Most Expensive
B
MOH London
LG674550365 · Oct 29
$1,557 AUD
£861 GBP
View
13 more retailers have this diamond
Prices start from $149 AUDSave up to $1,407 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
$149 AUD