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Round|Lab Grown|IGI

3.40ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG689566597

Certificate IGI LG689566597

Diamond specifications and retailer prices

From $2,352 USD
A$3,618 AUD
24 retailers carry this diamond
Most expensive: $11,430 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 LG689566597 or 689566597. Listed at 24 retailers. 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 angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689566597
Dimensions9.64 × 9.55 × 5.95 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
9.64 mm9.55 mm3.40 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689566597
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

Caratlytics Score

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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 30
Current: $11,430 USD|Low: $763 USD|High: $12,780 USD|Avg: $3,700 USD|-10.6%
Brilliant Earth
Retailer 2
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Retailer 25
September 24, 2026
Retailer 25$920 USD
Retailer 23$1,053 USD
Retailer 13$1,168 USD
Retailer 8$1,299 USD
Retailer 20$1,404 USD
Retailer 10$1,424 USD
Retailer 15$1,498 USD
Retailer 24$1,691 USD
Retailer 7$1,805 USD
Retailer 2$1,834 USD
Retailer 21$2,209 USD
Retailer 22$2,219 USD
Retailer 12$2,301 USD
Retailer 6$2,352 USD
Retailer 5$2,664 USD
Retailer 4$3,022 USD
Retailer 17$3,459 USD
Retailer 11$3,701 USD
Retailer 19$3,997 USD
Retailer 16$4,194 USD
Retailer 9$5,508 USD
Retailer 14$8,170 USD
Retailer 18$8,480 USD
Retailer 3$10,515 USD
Brilliant Earth$11,430 USD

31 data points across 25 retailers

24 retailers

A
Retailer 1
-
$920 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$1,053 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$1,299 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$1,404 USD
£1,105 GBP
View
Price last confirmed 9 days ago
A
Retailer 5
-
$1,424 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$1,498 USD
HK$11,700 HKD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$1,691 USD
£1,332 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
$1,805 USD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$1,834 USD
€1,747 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
-
$2,209 USD
View
Price last confirmed 10 days ago
A
Retailer 11
-
$2,219 USD
View
Price last confirmed 10 days ago
A
Retailer 12
-
$2,301 USD
View
Price last confirmed 7 days ago
A
Retailer 13
-
$2,352 USD
A$3,618 AUD
View
A
Retailer 14
-
$2,664 USD
ZAR 43,035 ZAR
View
Price last confirmed 19 days ago
A
Retailer 15
-
$3,022 USD
View
Price last confirmed 16 days ago
A
Retailer 16
-
$3,459 USD
View
Price last confirmed 11 days ago
B+
Retailer 17
-
$3,701 USD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$3,997 USD
£3,147 GBP
View
Price last confirmed 9 days ago
B+
Retailer 19
-
$4,194 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
-
$5,508 USD
View
Price last confirmed 22 days ago
B
Retailer 21
-
$8,170 USD
View
Price last confirmed 9 days ago
B
Retailer 22
-
$8,480 USD
A$13,046 AUD
View
Price last confirmed 89 days ago
B
Retailer 23
-
$10,515 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
14960082Y · Sep 21
$11,430 USD
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from $2,352 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
$2,352 USD