Emerald|Lab Grown|GCAL

1.09ct G SI1 Emerald Lab Grown Diamond

EX • G/SI1 • GCAL 310810364

Shape and cutting style on the report: Emerald step

Certificate GCAL 310810364

Diamond specifications and retailer prices

From $143 USD
As of October 30, 2026
Save $774 USD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $917 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.09ct lab-grown emerald diamond

This 1.09ct lab-grown emerald sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 310810364. Listed at 12 retailers as of October 30, 2026, with prices from $143 to $917, a $774 spread on the same certified stone. MOH London lists it at $917. 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

1.09
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
CertificateGCAL 310810364
Dimensions6.90 × 5.08 × 3.30 mm
L/W Ratio1.36
Culet sizeNone
Top View
6.90 mm5.08 mm1.09 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 310810364
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $917 USD|Low: $127 USD|High: $922 USD|Avg: $472 USD|+7.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10$143 USD
Retailer 6$178 USD
Retailer 7$265 USD
Retailer 2$300 USD
Retailer 3$448 USD
Retailer 4$521 USD
Retailer 5$615 USD
Retailer 9$630 USD
Retailer 8$804 USD
MOH London$917 USD

43 data points across 10 retailers

12 retailers$143 USD to $917 USD

Retailer 1
-
$133 USD
Price last confirmed 39 days ago
A
Retailer 2
-
$143 USD
View
Retailer 3
-
$162 USD
View
Price last confirmed 39 days ago
A
Retailer 4
-
$178 USD
View
B+
Retailer 5
-
$265 USD
View
A
Retailer 6
-
$300 USD
£236 GBP
View
B+
Retailer 7
-
$448 USD
£353 GBP
View
B+
Retailer 8
-
$521 USD
CA$724 CAD
View
B+
Retailer 9
-
$615 USD
View
B+
Retailer 10
-
$630 USD
View
B
Retailer 11
-
$804 USD
View
Most Expensive
B
MOH London
310810364 · Nov 1
$917 USD
£722 GBP
View
11 more retailers have this diamond
Prices start from $143 USDSave up to $774 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
$143 USD