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Emerald|Lab Grown|IGI

3.91ct D IF Emerald Lab Grown Diamond

EX • D/IF • IGI LG729590206

Certificate IGI LG729590206

Diamond specifications and retailer prices

From $2,581 USD
Save $9,189 USD (78%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $11,770 USD at Brilliant Earth
View at Brilliant Earth

About this 3.91ct lab-grown emerald diamond

This 3.91ct 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 LG729590206 or 729590206. Listed at 24 retailers, with prices from $2,581 to $11,770 at Brilliant Earth, a $9,189 spread on the same certified stone. 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

3.91
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729590206
Dimensions10.86 × 7.61 × 4.71 mm
L/W Ratio1.43
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
10.86 mm7.61 mm3.91 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729590206
Side View
Table 63.0%Crown 31.2°Girdle: MediumPavilion 40.7°Culet: LNGDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $11,770 USD|Low: $2,581 USD|High: $17,620 USD|Avg: $6,694 USD|-33.2%
Brilliant Earth
Retailer 2
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October 1, 2026
Retailer 13$2,581 USD
Retailer 3$2,890 USD
Retailer 7$2,952 USD
Retailer 23$2,994 USD
Retailer 22$3,056 USD
Retailer 4$3,155 USD
Retailer 15$3,469 USD
Retailer 10$4,115 USD
Retailer 18$4,132 USD
Retailer 6$4,402 USD
Retailer 19$4,588 USD
Retailer 14$4,647 USD
Retailer 17$4,894 USD
Retailer 12$5,685 USD
Retailer 20$6,826 USD
Retailer 21$8,113 USD
Retailer 16$8,407 USD
Retailer 8$8,638 USD
Retailer 9$8,791 USD
Retailer 2$9,624 USD
Retailer 11$10,443 USD
Retailer 5$10,771 USD
Brilliant Earth$11,770 USD

39 data points across 23 retailers

24 retailers$2,581 USD to $11,770 USD

A
Cheapest Retailer
-
$2,581 USD
A
Retailer 2
-
$2,890 USD
View
A
Retailer 3
-
$2,952 USD
View
A
Retailer 4
-
$2,994 USD
View
A
Retailer 5
-
$3,056 USD
View
A
Retailer 6
-
$3,155 USD
View
A
Retailer 7
-
$3,469 USD
HK$27,100 HKD
View
A
Retailer 8
-
$4,115 USD
View
A
Retailer 9
-
$4,138 USD
£3,258 GBP
View
A
Retailer 10
-
$4,402 USD
View
A
Retailer 11
-
$4,588 USD
View
A
Retailer 12
-
$4,647 USD
€4,426 EUR
View
A
Retailer 13
-
$4,894 USD
View
B+
Retailer 14
-
$5,685 USD
£4,476 GBP
View
B+
Retailer 15
-
$6,826 USD
ZAR 110,270 ZAR
View
B+
Retailer 16
-
$8,113 USD
£6,388 GBP
View
B+
Retailer 17
-
$8,220 USD
View
B
Retailer 18
-
$8,407 USD
£6,620 GBP
View
B
Retailer 19
-
$8,638 USD
View
B
Retailer 20
-
$8,791 USD
View
B
Retailer 21
-
$9,624 USD
A$14,806 AUD
View
B
Retailer 22
-
$10,443 USD
View
B
Retailer 23
-
$10,991 USD
View
Most Expensive
B
Brilliant Earth
15601671A · Oct 1
$11,770 USD
View
23 more retailers have this diamond
Prices start from $2,581 USDSave up to $9,189 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.

A
3.91ct Emerald
$2,581 USD