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Emerald|Lab Grown|IGI

1.73ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG701503478

Shape and cutting style on the report: Emerald cut

Certificate IGI LG701503478

Diamond specifications and retailer prices

From $420 NZD
$236 USD
As of October 30, 2026
Save $2,767 NZD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,187 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.73ct lab-grown emerald diamond

This 1.73ct 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 LG701503478 or 701503478. Listed at 15 retailers as of October 29, 2026, with prices from $420 to $3,187, a $2,767 spread on the same certified stone. Brilliant Earth lists it at $3,187. 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

1.73
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG701503478
Dimensions8.35 × 5.70 × 3.80 mm
L/W Ratio1.46
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
8.35 mm5.70 mm1.73 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG701503478
Side View
Table 60.0%Crown 28.8°Girdle: MediumPavilion 41°Culet: LargeDepth 66.7%

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: $3,187 NZD|Low: $404 NZD|High: $3,294 NZD|Avg: $1,154 NZD|-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
October 30, 2026
Retailer 14$420 NZD
Retailer 8$427 NZD
Retailer 5$472 NZD
Retailer 4$488 NZD
Retailer 3$522 NZD
Retailer 15$522 NZD
Retailer 13$703 NZD
Retailer 9$944 NZD
Retailer 6$985 NZD
Retailer 2$987 NZD
Retailer 12$1,330 NZD
Retailer 16$1,677 NZD
Retailer 7$1,771 NZD
Retailer 11$1,967 NZD
Retailer 10$2,094 NZD
Brilliant Earth$3,187 NZD

42 data points across 16 retailers

15 retailers$420 NZD to $3,187 NZD

A
Cheapest Retailer
-
$420 NZD
$236 USD
A
Retailer 2
-
$472 NZD
$265 USD
View
Final sale: no returns
A
Retailer 3
-
$488 NZD
$274 USD
View
A
Retailer 4
-
$522 NZD
$293 USD
View
A
Retailer 5
-
$522 NZD
$293 USD
View
B+
Retailer 6
-
$703 NZD
$395 USD
View
B+
Retailer 7
-
$944 NZD
€505 EUR
View
B+
Retailer 8
-
$985 NZD
$553 USD
View
B+
Retailer 9
-
$987 NZD
£436 GBP
View
B
Retailer 10
-
$1,330 NZD
$747 USD
View
B
Retailer 11
-
$1,677 NZD
$942 USD
View
B
Retailer 12
-
$1,771 NZD
$995 USD
View
Retailer 13
-
$1,967 NZD
$1,105 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$2,094 NZD
£926 GBP
View
Most Expensive
B
Brilliant Earth
21312106A · Oct 29
$3,187 NZD
$1,790 USD
View
14 more retailers have this diamond
Prices start from $420 NZDSave up to $2,767 NZD

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
1.73ct Emerald
$420 NZD