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Emerald|Lab Grown|IGI

1.72ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG490175625

Shape and cutting style on the report: Emerald cut

Certificate IGI LG490175625

Diamond specifications and retailer prices

From $490 NZD
$275 USD
As of October 28, 2026
Save $3,374 NZD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,864 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.72ct lab-grown emerald diamond

This 1.72ct 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 LG490175625 or 490175625. Listed at 10 retailers as of October 28, 2026, with prices from $490 to $3,864, a $3,374 spread on the same certified stone. Brilliant Earth lists it at $3,864. 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

1.72
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.2°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490175625
Dimensions7.69 × 5.62 × 3.95 mm
L/W Ratio1.37
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
Top View
7.69 mm5.62 mm1.72 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490175625
Side View
Table 65.0%Crown 30.2°Girdle: Slightly ThickPavilion 39.4°Culet: LNGDepth 70.3%

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: $3,864 NZD|Low: $267 NZD|High: $4,024 NZD|Avg: $1,224 NZD|-4.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$267 NZD
Retailer 8$490 NZD
Retailer 9$559 NZD
Retailer 6$652 NZD
Retailer 2$748 NZD
Retailer 7$930 NZD
Retailer 4$1,337 NZD
Retailer 5$1,521 NZD
Retailer 3$1,836 NZD
Brilliant Earth$3,864 NZD

20 data points across 10 retailers

10 retailers$490 NZD to $3,864 NZD

A
Cheapest Retailer
-
$490 NZD
$275 USD
B+
Retailer 2
-
$559 NZD
$314 USD
View
A
Retailer 3
-
$652 NZD
$366 USD
View
A
Retailer 4
-
$748 NZD
€400 EUR
View
B+
Retailer 5
-
$930 NZD
$522 USD
View
B+
Retailer 6
-
$1,337 NZD
$751 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$1,521 NZD
$854 USD
View
B
Retailer 8
-
$1,836 NZD
£812 GBP
View
B
Retailer 9
-
$3,205 NZD
$1,800 USD
View
Most Expensive
B
Brilliant Earth
16301458A · Oct 29
$3,864 NZD
$2,170 USD
View
9 more retailers have this diamond
Prices start from $490 NZDSave up to $3,374 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
1.72ct Emerald
$490 NZD