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Emerald|Lab Grown|IGI

1.78ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG812621755

Shape and cutting style on the report: Emerald cut

Certificate IGI LG812621755

Diamond specifications and retailer prices

From $463 CAD
$331 USD
As of October 30, 2026
Save $3,652 CAD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,116 CAD at Rare Carat · As of September 16, 2026
View at Rare Carat

About this 1.78ct lab-grown emerald diamond

This 1.78ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812621755 or 812621755. Listed at 17 retailers as of October 29, 2026, with a 788% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812621755
Dimensions8.22 × 5.73 × 3.81 mm
L/W Ratio1.43
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
8.22 mm5.73 mm1.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812621755
Side View
Table 63.0%Crown 31.5°Girdle: MediumPavilion 40.1°Culet: LargeDepth 66.5%

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 30
Current: $4,116 CAD|Low: $372 CAD|High: $4,116 CAD|Avg: $1,527 CAD
Rare Carat
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
Retailer 18
Retailer 19
October 29, 2026
Retailer 11$397 CAD
Retailer 16$463 CAD
Retailer 7$518 CAD
Retailer 6$575 CAD
Retailer 17$575 CAD
Retailer 15$868 CAD
Retailer 8$929 CAD
Retailer 12$987 CAD
Retailer 10$1,009 CAD
Retailer 9$1,302 CAD
Retailer 2$1,339 CAD
Retailer 3$1,492 CAD
Retailer 14$1,685 CAD
Retailer 19$2,072 CAD
Retailer 18$2,111 CAD
Retailer 5$2,171 CAD
Retailer 13$2,305 CAD
Retailer 4$4,115 CAD
Rare Carat$4,116 CAD

24 data points across 19 retailers

17 retailers$463 CAD to $4,115 CAD

A
Cheapest Retailer
-
$463 CAD
$331 USD
A
Retailer 2
-
$518 CAD
$370 USD
View
Final sale: no returns
A
Retailer 3
-
$575 CAD
$411 USD
View
A
Retailer 4
-
$575 CAD
$411 USD
View
A
Retailer 5
-
$868 CAD
$620 USD
View
A
Retailer 6
-
$929 CAD
$664 USD
View
A
Retailer 7
-
$987 CAD
ZAR 11,397 ZAR
View
Retailer 8
-
$1,302 CAD
$930 USD
View
Price last confirmed 28 days ago
A
Retailer 9
-
$1,339 CAD
A$1,472 AUD
View
A
Retailer 10
-
$1,492 CAD
$1,066 USD
View
B+
Retailer 11
-
$1,685 CAD
$1,204 USD
View
B+
Retailer 12
-
$2,072 CAD
$1,481 USD
View
B+
Retailer 13
-
$2,111 CAD
$1,508 USD
View
B+
Retailer 14
-
$2,171 CAD
$1,551 USD
View
B+
Retailer 15
-
$2,305 CAD
£1,297 GBP
View
B
Retailer 16
-
$4,115 CAD
$2,940 USD
View
Most Expensive
Rare Carat
C388-1A · Sep 16
$4,116 CAD
$2,941 USD
View
Price last confirmed 43 days ago
16 more retailers have this diamond
Prices start from $463 CADSave up to $3,652 CAD

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
1.78ct Emerald
$463 CAD