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Emerald|Lab Grown|IGI

1.78ct G IF Emerald Lab Grown Diamond

ID • G/IF • IGI LG620498304

Shape and cutting style on the report: Emerald cut

Certificate IGI LG620498304

Diamond specifications and retailer prices

From $320 USD
As of October 28, 2026
Save $2,960 USD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,280 USD at Brilliant Earth · As of October 28, 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG620498304 or 620498304. Listed at 22 retailers as of October 28, 2026, with prices from $320 to $3,280, a $2,960 spread on the same certified stone. Brilliant Earth lists it at $3,280. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620498304
Dimensions7.90 × 5.74 × 3.92 mm
L/W Ratio1.38
Culet sizeLong
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 Faint Blue
Top View
7.90 mm5.74 mm1.78 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620498304
Side View
Table 66.0%Crown 37.6°Girdle: MediumPavilion 36.6°Culet: LNGDepth 68.3%

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 28
Current: $3,280 USD|Low: $320 USD|High: $3,280 USD|Avg: $991 USD
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
October 29, 2026
Retailer 4$320 USD
Retailer 3$332 USD
Retailer 13$472 USD
Retailer 9$510 USD
Retailer 7$554 USD
Retailer 8$609 USD
Retailer 2$624 USD
Retailer 5$626 USD
Retailer 12$1,089 USD
Retailer 14$1,363 USD
Retailer 6$1,387 USD
Retailer 10$1,427 USD
Retailer 11$2,365 USD
Brilliant Earth$3,280 USD

41 data points across 14 retailers

22 retailers$320 USD to $3,280 USD

A
Retailer 1
-
$286 USD
Price last confirmed 10 days ago
A
Retailer 2
-
$320 USD
View
Final sale: no returns
A
Retailer 3
-
$332 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$354 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$354 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$472 USD
View
A
Retailer 7
-
$510 USD
View
A
Retailer 8
-
$554 USD
€528 EUR
View
A
Retailer 9
-
$609 USD
ZAR 9,839 ZAR
View
A
Retailer 10
-
$624 USD
£492 GBP
View
A
Retailer 11
-
$626 USD
View
A
Retailer 12
-
$769 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$1,089 USD
View
B+
Retailer 14
-
$1,139 USD
View
Price last confirmed 10 days ago
B+
Retailer 15
-
$1,189 USD
View
B+
Retailer 16
-
$1,229 USD
View
B+
Retailer 17
-
$1,363 USD
View
B+
Retailer 18
-
$1,387 USD
£1,092 GBP
View
Price last confirmed 21 days ago
B+
Retailer 19
-
$1,427 USD
£1,124 GBP
View
B+
Retailer 20
-
$1,465 USD
View
B
Retailer 21
-
$2,365 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
16509102A · Oct 28
$3,280 USD
View
21 more retailers have this diamond
Prices start from $320 USDSave up to $2,960 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
1.78ct Emerald
$320 USD