Emerald|Lab Grown|IGI

1.78ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG694550134

Shape and cutting style on the report: Emerald cut

Certificate IGI LG694550134

Diamond specifications and retailer prices

From $607 NZD
$342 USD
As of October 30, 2026
Save $4,202 NZD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,967 NZD at Brilliant Earth · As of October 20, 2026
View at Brilliant Earth

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 LG694550134 or 694550134. Listed at 15 retailers as of October 30, 2026, with a 692% 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG694550134
Dimensions8.37 × 5.65 × 3.80 mm
L/W Ratio1.48
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
8.37 mm5.65 mm1.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG694550134
Side View
Table 63.0%Crown 34.6°Girdle: MediumPavilion 41.9°Culet: LargeDepth 67.3%

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: $7,967 NZD|Low: $431 NZD|High: $8,605 NZD|Avg: $2,477 NZD|+3.2%
Brilliant Earth
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 28, 2026
Retailer 13$541 NZD
Retailer 4$607 NZD
Retailer 17$628 NZD
Retailer 14$672 NZD
Retailer 16$672 NZD
Retailer 12$898 NZD
Retailer 2$905 NZD
Retailer 3$1,150 NZD
Retailer 7$1,158 NZD
Retailer 11$1,737 NZD
Retailer 5$1,893 NZD
Retailer 15$2,582 NZD
Retailer 9$3,458 NZD
Retailer 8$4,189 NZD
Retailer 6$4,808 NZD
Retailer 10$6,379 NZD
Brilliant Earth$7,967 NZD

22 data points across 17 retailers

15 retailers$607 NZD to $4,808 NZD

Retailer 1
-
$541 NZD
$305 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$607 NZD
$342 USD
View
Final sale: no returns
Retailer 3
-
$628 NZD
$354 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$672 NZD
$379 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$672 NZD
$379 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$898 NZD
$506 USD
View
A
Retailer 7
-
$905 NZD
$510 USD
View
A
Retailer 8
-
$1,150 NZD
$648 USD
View
A
Retailer 9
-
$1,737 NZD
$979 USD
View
Retailer 10
-
$1,884 NZD
$1,062 USD
View
Price last confirmed 32 days ago
A
Retailer 11
-
$1,893 NZD
$1,067 USD
View
B+
Retailer 12
-
$2,582 NZD
$1,455 USD
View
B
Retailer 13
-
$4,808 NZD
$2,710 USD
View
Retailer 14
-
$6,379 NZD
$3,595 USD
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
20126588A · Oct 20
$7,967 NZD
$4,490 USD
View
Price last confirmed 11 days ago
14 more retailers have this diamond
Prices start from $607 NZDSave up to $4,202 NZD

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
$607 NZD