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Emerald|Lab Grown|IGI

0.51ct D FL Emerald Lab Grown Diamond

VG • D/FL • IGI LG816658211

Shape and cutting style on the report: Emerald cut

Certificate IGI LG816658211

Diamond specifications and retailer prices

From $330 AUD
$232 USD
As of October 29, 2026
Save $1,513 AUD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,444 AUD at Blue Nile · As of October 31, 2026
View at Blue Nile

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 FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816658211 or 816658211. Listed at 17 retailers as of October 29, 2026, with a 458% 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
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle45.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658211
Dimensions5.44 × 3.73 × 2.57 mm
L/W Ratio1.46
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
5.44 mm3.73 mm0.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816658211
Side View
Table 66.0%Crown 36.8°Girdle: MediumPavilion 45.7°Culet: LargeDepth 68.9%

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: Oct 29
Current: $2,444 AUD|Low: $330 AUD|High: $2,444 AUD|Avg: $1,030 AUD|+9.2%
Blue Nile
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 17$330 AUD
Retailer 16$369 AUD
Retailer 15$383 AUD
Retailer 8$404 AUD
Retailer 11$410 AUD
Retailer 9$555 AUD
Retailer 7$562 AUD
Retailer 2$641 AUD
Retailer 13$818 AUD
Retailer 5$819 AUD
Retailer 10$861 AUD
Retailer 6$1,317 AUD
Retailer 12$1,453 AUD
Retailer 3$1,695 AUD
Retailer 4$1,821 AUD
Retailer 14$1,844 AUD
Blue Nile$2,444 AUD

26 data points across 17 retailers

17 retailers$330 AUD to $1,844 AUD

A
Cheapest Retailer
-
$330 AUD
$232 USD
A
Retailer 2
-
$369 AUD
$259 USD
View
Final sale: no returns
A
Retailer 3
-
$383 AUD
$269 USD
View
A
Retailer 4
-
$404 AUD
$284 USD
View
A
Retailer 5
-
$410 AUD
$288 USD
View
B+
Retailer 6
-
$555 AUD
$390 USD
View
B+
Retailer 7
-
$562 AUD
$395 USD
View
B+
Retailer 8
-
$641 AUD
$450 USD
View
B
Retailer 9
-
$818 AUD
ZAR 9,282 ZAR
View
B
Retailer 10
-
$819 AUD
$575 USD
View
B
Retailer 11
-
$861 AUD
€576 EUR
View
B
Retailer 12
-
$1,317 AUD
CA$1,285 CAD
View
B
Retailer 13
-
$1,453 AUD
$1,021 USD
View
B
Retailer 14
-
$1,695 AUD
$1,191 USD
View
B
Retailer 15
-
$1,821 AUD
£1,007 GBP
View
B
Retailer 16
-
$1,844 AUD
$1,295 USD
View
Most Expensive
Blue Nile
30303461 · Oct 31
$2,444 AUD
$1,717 USD
View
Price under review
16 more retailers have this diamond
Prices start from $330 AUDSave up to $1,513 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.

A
0.51ct Emerald
$330 AUD