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Round|Lab Grown|IGI

3.40ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG680538404

Certificate IGI LG680538404

Diamond specifications and retailer prices

From $1,025 USD
Save $15,535 USD (94%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $16,560 USD at Brilliant Earth
View at Brilliant Earth

About this 3.4ct lab-grown round diamond

This 3.4ct lab-grown round 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 LG680538404 or 680538404. Listed at 24 retailers, with prices from $1,025 to $16,560 at Brilliant Earth, a $15,535 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

3.40
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680538404
Dimensions9.60 × 9.68 × 5.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
9.60 mm9.68 mm3.40 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680538404
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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 28
Current: $16,560 USD|Low: $818 USD|High: $16,560 USD|Avg: $4,014 USD
Brilliant Earth
Retailer 2
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Retailer 18
October 1, 2026
Retailer 3$1,147 USD
Retailer 4$1,189 USD
Retailer 11$1,365 USD
Retailer 16$1,541 USD
Retailer 2$1,897 USD
Retailer 12$1,904 USD
Retailer 6$1,939 USD
Retailer 8$2,240 USD
Retailer 7$2,485 USD
Retailer 14$2,967 USD
Retailer 17$2,976 USD
Retailer 18$3,915 USD
Retailer 13$4,267 USD
Retailer 15$4,601 USD
Retailer 10$4,663 USD
Retailer 5$5,610 USD
Retailer 9$9,850 USD
Brilliant Earth$16,560 USD

36 data points across 18 retailers

24 retailers$1,025 USD to $16,560 USD

A
Cheapest Retailer
-
$1,025 USD
A
Retailer 2
-
$1,115 USD
View
Price last confirmed 8 days ago
A
Retailer 3
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$1,147 USD
View
A
Retailer 4
-
$1,172 USD
View
A
Retailer 5
-
$1,189 USD
View
A
Retailer 6
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$1,365 USD
View
A
Retailer 7
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$1,541 USD
View
A
Retailer 8
-
$1,897 USD
View
A
Retailer 9
-
$1,908 USD
£1,503 GBP
View
A
Retailer 10
-
$1,939 USD
€1,847 EUR
View
Price last confirmed 47 days ago
A
Retailer 11
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$2,240 USD
View
A
Retailer 12
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$2,460 USD
View
A
Retailer 13
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$2,485 USD
View
A
Retailer 14
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$2,967 USD
A$4,564 AUD
View
A
Retailer 15
-
$2,976 USD
ZAR 48,079 ZAR
View
Price last confirmed 10 days ago
B+
Retailer 16
-
$3,915 USD
View
B+
Retailer 17
-
$4,084 USD
View
B+
Retailer 18
-
$4,267 USD
£3,360 GBP
View
B+
Retailer 19
-
$4,601 USD
SGD 6,217 SGD
View
B+
Retailer 20
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$4,663 USD
View
B+
Retailer 21
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$5,610 USD
View
Price last confirmed 22 days ago
B
Retailer 22
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$9,100 USD
View
B
Retailer 23
-
$9,850 USD
View
Most Expensive
B
Brilliant Earth
21069008Y · Oct 1
$16,560 USD
View
23 more retailers have this diamond
Prices start from $1,025 USDSave up to $15,535 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
3.40ct Round
$1,025 USD