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 $232 USD
As of October 29, 2026
Save $1,063 USD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,717 USD at Blue Nile · As of October 29, 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
Color
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

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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: $1,717 USD|Low: $232 USD|High: $1,717 USD|Avg: $725 USD|+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 29, 2026
Retailer 16$232 USD
Retailer 15$259 USD
Retailer 14$269 USD
Retailer 8$284 USD
Retailer 10$288 USD
Retailer 9$390 USD
Retailer 6$395 USD
Retailer 12$575 USD
Retailer 4$575 USD
Retailer 2$605 USD
Retailer 7$650 USD
Retailer 5$925 USD
Retailer 11$1,021 USD
Retailer 17$1,191 USD
Retailer 3$1,279 USD
Retailer 13$1,295 USD
Blue Nile$1,717 USD

25 data points across 17 retailers

17 retailers$232 USD to $1,295 USD

A
Cheapest Retailer
-
$232 USD
A
Retailer 2
-
$259 USD
View
Final sale: no returns
A
Retailer 3
-
$269 USD
View
A
Retailer 4
-
$284 USD
View
A
Retailer 5
-
$288 USD
View
B+
Retailer 6
-
$390 USD
View
B+
Retailer 7
-
$395 USD
View
B
Retailer 8
-
$575 USD
ZAR 9,282 ZAR
View
B
Retailer 9
-
$575 USD
View
B
Retailer 10
-
$605 USD
€576 EUR
View
B
Retailer 11
-
$650 USD
View
B
Retailer 12
-
$925 USD
CA$1,285 CAD
View
B
Retailer 13
-
$1,021 USD
View
B
Retailer 14
-
$1,191 USD
View
B
Retailer 15
-
$1,279 USD
£1,007 GBP
View
B
Retailer 16
-
$1,295 USD
View
Most Expensive
Blue Nile
30303461 · Oct 29
$1,717 USD
View
Price under review
16 more retailers have this diamond
Prices start from $232 USDSave up to $1,063 USD

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
$232 USD