Emerald|Lab Grown|IGI

8.57ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG647458717

Shape and cutting style on the report: Emerald cut

Certificate IGI LG647458717

Diamond specifications and retailer prices

From €1,065 EUR
$1,190 USD
As of October 31, 2026
Save €4,914 EUR (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €5,979 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.57ct lab-grown emerald diamond

This 8.57ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG647458717 or 647458717. Listed at 13 retailers as of October 31, 2026, with prices from €1,065 to €5,979, a €4,914 spread on the same certified stone. Brilliant Earth lists it at €5,979. 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

8.57
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647458717
Dimensions13.65 × 9.47 × 6.71 mm
L/W Ratio1.44
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.65 mm9.47 mm8.57 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647458717
Side View
Table 66.0%Crown 36.5°Girdle: MediumPavilion 42.9°Culet: LNGDepth 70.9%

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 31
Current: €5,979 EUR|Low: €1,065 EUR|High: €6,167 EUR|Avg: €2,431 EUR|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10€1,065 EUR
Retailer 8€1,104 EUR
Retailer 4€1,258 EUR
Retailer 7€1,580 EUR
Retailer 3€1,598 EUR
Retailer 5€1,724 EUR
Retailer 6€2,103 EUR
Retailer 9€3,701 EUR
Retailer 2€3,742 EUR
Brilliant Earth€5,979 EUR

43 data points across 10 retailers

13 retailers€1,065 EUR to €5,979 EUR

Retailer 1
-
€951 EUR
$1,063 USD
Price last confirmed 40 days ago
Retailer 2
-
€1,035 EUR
$1,156 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
€1,065 EUR
$1,190 USD
View
Final sale: no returns
Retailer 4
-
€1,088 EUR
$1,216 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
€1,258 EUR
$1,405 USD
View
B+
Retailer 6
-
€1,580 EUR
$1,765 USD
View
A
Retailer 7
-
€1,598 EUR
£1,406 GBP
View
B+
Retailer 8
-
€1,724 EUR
View
B+
Retailer 9
-
€2,103 EUR
$2,350 USD
View
B
Retailer 10
-
€3,701 EUR
SGD 5,588 SGD
View
B
Retailer 11
-
€3,742 EUR
£3,292 GBP
View
B
Retailer 12
-
€3,854 EUR
$4,306 USD
View
Most Expensive
B
Brilliant Earth
14242444A · Oct 31
€5,979 EUR
$6,680 USD
View
12 more retailers have this diamond
Prices start from €1,065 EURSave up to €4,914 EUR

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
8.57ct Emerald
€1,065 EUR