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Emerald|Lab Grown|IGI

1.78ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG825660129

Shape and cutting style on the report: Emerald cut

Certificate IGI LG825660129

Diamond specifications and retailer prices

From €422 EUR
$471 USD
As of October 30, 2026
Save €3,468 EUR (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €3,934 EUR at Rare Carat · As of October 14, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660129 or 825660129. Listed at 22 retailers as of October 28, 2026, with a 823% 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660129
Dimensions8.10 × 5.74 × 3.91 mm
L/W Ratio1.41
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
8.10 mm5.74 mm1.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660129
Side View
Table 64.0%Crown 34.5°Girdle: MediumPavilion 40.6°Culet: LargeDepth 68.1%

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 30
Current: €3,889 EUR|Low: €422 EUR|High: €5,102 EUR|Avg: €1,719 EUR|-2.0%
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
Retailer 20
October 30, 2026
Retailer 10€422 EUR
Retailer 6€473 EUR
Retailer 7€473 EUR
Retailer 20€523 EUR
Retailer 18€649 EUR
Retailer 15€800 EUR
Retailer 9€817 EUR
Retailer 14€868 EUR
Retailer 17€899 EUR
Retailer 19€1,219 EUR
Retailer 4€1,267 EUR
Retailer 11€1,661 EUR
Retailer 12€1,664 EUR
Retailer 3€1,682 EUR
Retailer 5€1,708 EUR
Retailer 13€1,838 EUR
Retailer 16€1,932 EUR
Retailer 8€2,278 EUR
Retailer 2€3,562 EUR
Rare Carat€3,889 EUR

35 data points across 20 retailers

22 retailers€422 EUR to €3,889 EUR

A
Cheapest Retailer
-
€422 EUR
$471 USD
A
Retailer 2
-
€473 EUR
$528 USD
View
Final sale: no returns
A
Retailer 3
-
€473 EUR
$528 USD
View
A
Retailer 4
-
€523 EUR
$584 USD
View
Retailer 5
-
€569 EUR
$636 USD
View
Price last confirmed 14 days ago
A
Retailer 6
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€649 EUR
$725 USD
View
A
Retailer 7
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€800 EUR
View
A
Retailer 8
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€817 EUR
$913 USD
View
A
Retailer 9
-
€868 EUR
£763 GBP
View
A
Retailer 10
-
€899 EUR
ZAR 16,226 ZAR
View
B+
Retailer 11
-
€1,219 EUR
$1,362 USD
View
B+
Retailer 12
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€1,267 EUR
$1,416 USD
View
B+
Retailer 13
-
€1,661 EUR
SGD 2,507 SGD
View
Retailer 14
-
€1,664 EUR
£1,464 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
€1,682 EUR
$1,879 USD
View
B
Retailer 16
-
€1,708 EUR
$1,908 USD
View
B+
Retailer 17
-
€1,838 EUR
$2,053 USD
View
B+
Retailer 18
-
€1,932 EUR
£1,700 GBP
View
B+
Retailer 19
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€2,278 EUR
$2,545 USD
View
B
Retailer 20
-
€3,562 EUR
$3,980 USD
View
B
Retailer 21
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€3,889 EUR
$4,345 USD
View
Most Expensive
Rare Carat
PD1296601JJ825 · Oct 14
€3,934 EUR
$4,395 USD
View
Price last confirmed 16 days ago
21 more retailers have this diamond
Prices start from €422 EURSave up to €3,468 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
€422 EUR