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Emerald|Lab Grown|IGI

1.74ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG519244921

Shape and cutting style on the report: Emerald cut

Certificate IGI LG519244921

Diamond specifications and retailer prices

From $480 AUD
$337 USD
As of October 28, 2026
Save $549 AUD (53%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,117 AUD at Brilliant Earth · As of October 20, 2026
View at Brilliant Earth

About this 1.74ct lab-grown emerald diamond

This 1.74ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG519244921 or 519244921. Listed at 3 retailers as of October 23, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.74
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle28.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519244921
Dimensions8.01 × 5.72 × 3.78 mm
L/W Ratio1.40
Culet sizeLong
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
8.01 mm5.72 mm1.74 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519244921
Side View
Table 63.5%Crown 28.8°Girdle: MediumPavilion 40.6°Culet: LNGDepth 66.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $3,117 AUD|Low: $252 AUD|High: $3,217 AUD|Avg: $1,288 AUD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 18, 2026
Retailer 5$252 AUD
Retailer 4$480 AUD
Retailer 10$528 AUD
Retailer 9$713 AUD
Retailer 3$817 AUD
Retailer 7$878 AUD
Retailer 2$1,029 AUD
Retailer 8$1,627 AUD
Retailer 11$1,705 AUD
Retailer 6$3,032 AUD
Brilliant Earth$3,117 AUD

6 data points across 11 retailers

3 retailers$480 AUD to $1,029 AUD

B+
Cheapest Retailer
-
$480 AUD
$337 USD
B
Retailer 2
-
$1,029 AUD
$723 USD
View
Most Expensive
B
Brilliant Earth
21036761A · Oct 20
$3,117 AUD
$2,190 USD
View
Price last confirmed 9 days ago
2 more retailers have this diamond
Prices start from $480 AUDSave up to $549 AUD

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.

B+
1.74ct Emerald
$480 AUD