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Round|Lab Grown|IGI

3.40ct I IF Round Lab Grown Diamond

EX • I/IF • IGI LG629429211

Shape and cutting style on the report: Round brilliant

Certificate IGI LG629429211

Diamond specifications and retailer prices

From $772 USD
As of October 29, 2026
Save $3,078 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,850 USD at Brilliant Earth · As of October 30, 2026
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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG629429211 or 629429211. Listed at 18 retailers as of October 29, 2026, with prices from $772 to $3,850, a $3,078 spread on the same certified stone. Brilliant Earth lists it at $3,850. 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
I
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629429211
Dimensions9.72 × 9.70 × 5.85 mm
L/W Ratio1.00
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
9.72 mm9.70 mm3.40 ctI / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629429211
Side View
Table 57.0%Crown 32.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $3,850 USD|Low: $741 USD|High: $5,670 USD|Avg: $2,045 USD|-32.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 15$772 USD
Retailer 4$840 USD
Retailer 17$865 USD
Retailer 16$896 USD
Retailer 11$1,070 USD
Retailer 3$1,282 USD
Retailer 2$1,423 USD
Retailer 13$1,470 USD
Retailer 7$1,871 USD
Retailer 10$2,080 USD
Retailer 14$2,130 USD
Retailer 8$2,501 USD
Retailer 5$2,518 USD
Retailer 6$2,789 USD
Retailer 9$3,094 USD
Retailer 12$3,362 USD
Brilliant Earth$3,850 USD

39 data points across 17 retailers

18 retailers$772 USD to $3,850 USD

A
Cheapest Retailer
-
$772 USD
A
Retailer 2
-
$840 USD
View
A
Retailer 3
-
$865 USD
View
Final sale: no returns
Retailer 4
-
$896 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$896 USD
View
A
Retailer 6
-
$1,070 USD
View
A
Retailer 7
-
$1,282 USD
View
A
Retailer 8
-
$1,423 USD
€1,355 EUR
View
A
Retailer 9
-
$1,470 USD
View
B+
Retailer 10
-
$1,871 USD
View
B+
Retailer 11
-
$2,080 USD
ZAR 33,595 ZAR
View
B+
Retailer 12
-
$2,130 USD
View
B
Retailer 13
-
$2,501 USD
View
B
Retailer 14
-
$2,518 USD
View
B
Retailer 15
-
$2,789 USD
£2,196 GBP
View
B
Retailer 16
-
$3,094 USD
View
B
Retailer 17
-
$3,362 USD
£2,647 GBP
View
Most Expensive
B
Brilliant Earth
10022222A · Oct 30
$3,850 USD
View
17 more retailers have this diamond
Prices start from $772 USDSave up to $3,078 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
3.40ct Round
$772 USD