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Emerald|Lab Grown|IGI

1.09ct E IF Emerald Lab Grown Diamond

EX • E/IF • IGI LG585317378

Shape and cutting style on the report: Emerald cut

Certificate IGI LG585317378

Diamond specifications and retailer prices

From $173 USD
As of October 27, 2026
Save $1,537 USD (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,710 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.09ct lab-grown emerald diamond

This 1.09ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG585317378 or 585317378. Listed at 20 retailers as of October 27, 2026, with prices from $173 to $1,710, a $1,537 spread on the same certified stone. Brilliant Earth lists it at $1,710. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle43.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG585317378
Dimensions6.80 × 4.89 × 3.34 mm
L/W Ratio1.39
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
6.80 mm4.89 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG585317378
Side View
Table 61.0%Crown 35.5°Girdle: MediumPavilion 43.3°Culet: LNGDepth 68.3%

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 27
Current: $1,670 USD|Low: $173 USD|High: $1,710 USD|Avg: $482 USD|-2.3%
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
Retailer 17
October 29, 2026
Retailer 5$173 USD
Retailer 3$193 USD
Retailer 17$200 USD
Retailer 10$214 USD
Retailer 9$227 USD
Retailer 13$290 USD
Retailer 16$368 USD
Retailer 14$381 USD
Retailer 2$420 USD
Retailer 11$458 USD
Retailer 6$554 USD
Retailer 8$574 USD
Retailer 15$630 USD
Retailer 12$689 USD
Retailer 4$743 USD
Retailer 7$1,063 USD
Brilliant Earth$1,670 USD

43 data points across 17 retailers

20 retailers$173 USD to $1,710 USD

A
Cheapest Retailer
-
$173 USD
A
Retailer 2
-
$193 USD
View
Final sale: no returns
A
Retailer 3
-
$200 USD
View
A
Retailer 4
-
$214 USD
View
A
Retailer 5
-
$227 USD
View
B+
Retailer 6
-
$290 USD
View
A
Retailer 7
-
$368 USD
ZAR 5,945 ZAR
View
A
Retailer 8
-
$381 USD
£300 GBP
View
A
Retailer 9
-
$420 USD
€400 EUR
View
A
Retailer 10
-
$458 USD
View
A
Retailer 11
-
$554 USD
A$853 AUD
View
B+
Retailer 12
-
$574 USD
View
B+
Retailer 13
-
$630 USD
View
B+
Retailer 14
-
$689 USD
View
B+
Retailer 15
-
$743 USD
View
B+
Retailer 16
-
$756 USD
View
B+
Retailer 17
-
$822 USD
A$1,265 AUD
View
Price last confirmed 139 days ago
B+
Retailer 18
-
$1,063 USD
£837 GBP
View
B
Retailer 19
-
$1,670 USD
View
Most Expensive
B
Brilliant Earth
14223931A · Oct 28
$1,710 USD
View
19 more retailers have this diamond
Prices start from $173 USDSave up to $1,537 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
1.09ct Emerald
$173 USD