CaratHunter
Plans
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 €306 EUR
$342 USD
As of October 30, 2026
Save €2,120 EUR (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €4,019 EUR 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 29, 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €4,019 EUR|Low: €218 EUR|High: €4,341 EUR|Avg: €1,257 EUR|+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€273 EUR
Retailer 4€306 EUR
Retailer 17€317 EUR
Retailer 14€339 EUR
Retailer 16€339 EUR
Retailer 12€453 EUR
Retailer 2€456 EUR
Retailer 3€580 EUR
Retailer 7€584 EUR
Retailer 11€876 EUR
Retailer 5€955 EUR
Retailer 15€1,302 EUR
Retailer 9€1,744 EUR
Retailer 8€2,113 EUR
Retailer 6€2,426 EUR
Retailer 10€3,218 EUR
Brilliant Earth€4,019 EUR

22 data points across 17 retailers

15 retailers€306 EUR to €2,426 EUR

Retailer 1
-
€273 EUR
$305 USD
Price last confirmed 20 days ago
A
Retailer 2
-
€306 EUR
$342 USD
View
Final sale: no returns
Retailer 3
-
€317 EUR
$354 USD
View
Price last confirmed 21 days ago
Retailer 4
-
€339 EUR
$379 USD
View
Price last confirmed 28 days ago
Retailer 5
-
€339 EUR
$379 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€453 EUR
$506 USD
View
A
Retailer 7
-
€456 EUR
$510 USD
View
A
Retailer 8
-
€580 EUR
$648 USD
View
A
Retailer 9
-
€876 EUR
$979 USD
View
Retailer 10
-
€951 EUR
$1,062 USD
View
Price last confirmed 32 days ago
A
Retailer 11
-
€955 EUR
$1,067 USD
View
B+
Retailer 12
-
€1,302 EUR
$1,455 USD
View
B
Retailer 13
-
€2,426 EUR
$2,710 USD
View
Retailer 14
-
€3,218 EUR
$3,595 USD
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
20126588A · Oct 20
€4,019 EUR
$4,490 USD
View
Price last confirmed 11 days ago
14 more retailers have this diamond
Prices start from €306 EURSave up to €2,120 EUR

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
€306 EUR