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Round|Lab Grown|IGI

3.09ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG839676250

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839676250

Diamond specifications and retailer prices

From $1,039 USD
As of October 29, 2026
Save $13,631 USD (93%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $14,670 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.09ct lab-grown round diamond

This 3.09ct 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 LG839676250 or 839676250. Listed at 14 retailers as of October 29, 2026, with prices from $1,039 to $14,670, a $13,631 spread on the same certified stone. Brilliant Earth lists it at $14,670. 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

3.09
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839676250
Dimensions9.34 × 9.29 × 5.75 mm
L/W Ratio1.01
Girdle conditionFaceted
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
9.34 mm9.29 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839676250
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $14,670 USD|Low: $1,039 USD|High: $14,670 USD|Avg: $3,198 USD
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
October 29, 2026
Retailer 12$1,039 USD
Retailer 11$1,242 USD
Retailer 10$1,288 USD
Retailer 13$1,540 USD
Retailer 3$1,560 USD
Retailer 2$1,648 USD
Retailer 9$1,689 USD
Retailer 4$2,407 USD
Retailer 5$2,490 USD
Retailer 7$2,500 USD
Retailer 6$3,280 USD
Retailer 14$3,612 USD
Retailer 8$3,670 USD
Brilliant Earth$14,670 USD

18 data points across 14 retailers

14 retailers$1,039 USD to $14,670 USD

A+
Cheapest Retailer
-
$1,039 USD
Final sale: no returns
A
Retailer 2
-
$1,242 USD
HK$9,700 HKD
View
A
Retailer 3
-
$1,288 USD
£1,015 GBP
View
A
Retailer 4
-
$1,540 USD
View
A
Retailer 5
-
$1,560 USD
View
A
Retailer 6
-
$1,648 USD
£1,297 GBP
View
A
Retailer 7
-
$1,689 USD
€1,609 EUR
View
A
Retailer 8
-
$2,407 USD
View
A
Retailer 9
-
$2,490 USD
A$3,831 AUD
View
Price last confirmed 7 days ago
A
Retailer 10
-
$2,500 USD
ZAR 40,385 ZAR
View
B+
Retailer 11
-
$3,280 USD
View
B+
Retailer 12
-
$3,612 USD
SGD 4,881 SGD
View
B+
Retailer 13
-
$3,670 USD
£2,890 GBP
View
Most Expensive
B
Brilliant Earth
21813004A · Oct 29
$14,670 USD
View
13 more retailers have this diamond
Prices start from $1,039 USDSave up to $13,631 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+
3.09ct Round
$1,039 USD