Emerald|Lab Grown|IGI

3.18ct D IF Emerald Lab Grown Diamond

EX • D/IF • IGI LG786648233

Shape and cutting style on the report: Emerald cut

Certificate IGI LG786648233

Diamond specifications and retailer prices

From $1,782 USD
As of October 30, 2026
Save $6,898 USD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,680 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.18ct lab-grown emerald diamond

This 3.18ct lab-grown emerald sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786648233 or 786648233. Listed at 13 retailers as of October 29, 2026, with prices from $1,782 to $8,680, a $6,898 spread on the same certified stone. Brilliant Earth lists it at $8,680. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.18
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786648233
Dimensions10.16 × 6.91 × 4.52 mm
L/W Ratio1.47
Culet sizeLarge
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
10.16 mm6.91 mm3.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786648233
Side View
Table 63.0%Crown 34.1°Girdle: MediumPavilion 41.3°Culet: LargeDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,289 USD|Low: $1,782 USD|High: $6,764 USD|Avg: $3,993 USD|-15.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11$1,782 USD
Retailer 1$2,289 USD
Retailer 2$2,328 USD
Retailer 12$2,465 USD
Retailer 7$2,708 USD
Retailer 5$3,768 USD
Retailer 8$4,218 USD
Retailer 6$4,658 USD
Retailer 10$5,630 USD
Retailer 4$5,630 USD
Retailer 9$5,751 USD
Retailer 3$6,750 USD

42 data points across 12 retailers

13 retailers$1,782 USD to $8,680 USD

A
Cheapest Retailer
-
$1,782 USD
A
Retailer 2
-
$2,289 USD
£1,803 GBP
View
A
Retailer 3
-
$2,328 USD
View
A
Retailer 4
-
$2,465 USD
View
A
Retailer 5
-
$2,708 USD
View
A
Retailer 6
-
$3,768 USD
ZAR 60,867 ZAR
View
B+
Retailer 7
-
$4,218 USD
View
B+
Retailer 8
-
$4,658 USD
£3,668 GBP
View
B+
Retailer 9
-
$5,630 USD
SGD 7,608 SGD
View
Retailer 10
-
$5,630 USD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
$5,751 USD
View
Retailer 12
-
$6,750 USD
A$10,384 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
22138143Y · Oct 29
$8,680 USD
View
12 more retailers have this diamond
Prices start from $1,782 USDSave up to $6,898 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
3.18ct Emerald
$1,782 USD