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Emerald|Lab Grown|IGI

1.71ct E SI1 Emerald Lab Grown Diamond

GD • E/SI1 • IGI LG508141059

Shape and cutting style on the report: Emerald cut

Certificate IGI LG508141059

Diamond specifications and retailer prices

From $193 USD
As of October 27, 2026
Save $1,177 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,370 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.71ct lab-grown emerald diamond

This 1.71ct 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 standard cut grade and certified by IGI LG508141059 or 508141059. Listed at 15 retailers as of October 27, 2026, with prices from $193 to $1,370, a $1,177 spread on the same certified stone. Brilliant Earth lists it at $1,370. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.4°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508141059
Dimensions7.91 × 5.59 × 3.79 mm
L/W Ratio1.42
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
7.91 mm5.59 mm1.71 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508141059
Side View
Table 62.5%Crown 28.4°Girdle: Slightly ThickPavilion 38.2°Culet: LNGDepth 67.8%

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: $1,370 USD|Low: $193 USD|High: $1,500 USD|Avg: $665 USD|-8.7%
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
October 29, 2026
Retailer 3$193 USD
Retailer 14$216 USD
Retailer 13$224 USD
Retailer 9$240 USD
Retailer 7$300 USD
Retailer 12$322 USD
Retailer 2$435 USD
Retailer 10$505 USD
Retailer 8$542 USD
Retailer 6$752 USD
Retailer 11$770 USD
Retailer 15$824 USD
Retailer 5$1,105 USD
Retailer 4$1,210 USD
Brilliant Earth$1,370 USD

44 data points across 15 retailers

15 retailers$193 USD to $1,370 USD

A
Cheapest Retailer
-
$193 USD
B+
Retailer 2
-
$216 USD
View
Final sale: no returns
B+
Retailer 3
-
$224 USD
View
A
Retailer 4
-
$240 USD
View
B+
Retailer 5
-
$300 USD
View
B
Retailer 6
-
$322 USD
View
B+
Retailer 7
-
$435 USD
£343 GBP
View
B+
Retailer 8
-
$505 USD
View
B+
Retailer 9
-
$542 USD
€516 EUR
View
B
Retailer 10
-
$752 USD
View
B
Retailer 11
-
$770 USD
View
B
Retailer 12
-
$824 USD
View
B
Retailer 13
-
$1,105 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$1,210 USD
£953 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
11238343A · Oct 29
$1,370 USD
View
14 more retailers have this diamond
Prices start from $193 USDSave up to $1,177 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
1.71ct Emerald
$193 USD