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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 $105 USD
As of October 27, 2026
Save $988 USD (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,093 USD 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 27, 2026, with prices from $105 to $1,093, a $988 spread on the same certified stone. MOH London lists it at $1,093. 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
Color
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 27
Current: $1,093 USD|Low: $101 USD|High: $1,101 USD|Avg: $311 USD|+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 29, 2026
Retailer 12$105 USD
Retailer 3$122 USD
Retailer 11$139 USD
Retailer 13$139 USD
Retailer 4$230 USD
Retailer 2$256 USD
Retailer 10$261 USD
Retailer 5$262 USD
Retailer 7$314 USD
Retailer 6$361 USD
Retailer 8$380 USD
Retailer 14$419 USD
Retailer 9$467 USD
MOH London$1,093 USD

44 data points across 14 retailers

14 retailers$105 USD to $1,093 USD

A
Cheapest Retailer
-
$105 USD
A
Retailer 2
-
$122 USD
View
A
Retailer 3
-
$139 USD
View
A
Retailer 4
-
$139 USD
View
B+
Retailer 5
-
$230 USD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$256 USD
£202 GBP
View
B+
Retailer 7
-
$261 USD
€249 EUR
View
B+
Retailer 8
-
$262 USD
View
B+
Retailer 9
-
$314 USD
£248 GBP
View
B
Retailer 10
-
$361 USD
View
B
Retailer 11
-
$380 USD
View
B
Retailer 12
-
$419 USD
View
B
Retailer 13
-
$467 USD
View
Most Expensive
B
MOH London
LG674550365 · Oct 29
$1,093 USD
£861 GBP
View
13 more retailers have this diamond
Prices start from $105 USDSave up to $988 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
$105 USD