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Emerald|Lab Grown|IGI

3.66ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG621431858

Shape and cutting style on the report: Emerald cut

Certificate IGI LG621431858

Diamond specifications and retailer prices

From $351 USD
As of October 27, 2026
Save $2,759 USD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,110 USD at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 3.66ct lab-grown emerald diamond

This 3.66ct lab-grown emerald sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG621431858 or 621431858. Listed at 10 retailers as of October 27, 2026, with prices from $351 to $3,110, a $2,759 spread on the same certified stone. Do Amore Diamonds lists it at $3,110. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.66
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621431858
Dimensions10.51 × 7.14 × 4.83 mm
L/W Ratio1.47
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.51 mm7.14 mm3.66 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621431858
Side View
Table 66.0%Crown 36.6°Girdle: MediumPavilion 41.5°Culet: LargeDepth 67.6%

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 27
Current: $3,110 USD|Low: $351 USD|High: $3,380 USD|Avg: $1,415 USD|-8.0%
Do Amore Diamonds
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 28, 2026
Retailer 10$351 USD
Retailer 8$407 USD
Retailer 3$421 USD
Retailer 5$634 USD
Retailer 11$699 USD
Retailer 2$700 USD
Retailer 4$905 USD
Retailer 9$1,275 USD
Retailer 12$1,314 USD
Retailer 13$1,543 USD
Retailer 7$1,878 USD
Retailer 14$2,690 USD
Retailer 6$2,943 USD
Do Amore Diamonds$3,110 USD

23 data points across 14 retailers

10 retailers$351 USD to $3,110 USD

A
Cheapest Retailer
-
$351 USD
A
Retailer 2
-
$407 USD
View
Retailer 3
-
$699 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$700 USD
View
Price last confirmed 5 days ago
Retailer 5
-
$1,275 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$1,314 USD
View
Retailer 7
-
$1,543 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$1,878 USD
£1,479 GBP
View
B
Retailer 9
-
$2,690 USD
View
Most Expensive
B
Do Amore Diamonds
27-28B3EAC4A · Oct 28
$3,110 USD
View
9 more retailers have this diamond
Prices start from $351 USDSave up to $2,759 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
3.66ct Emerald
$351 USD