Round|Lab Grown|IGI

3.09ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG815677230

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815677230

Diamond specifications and retailer prices

From $759 USD
As of October 29, 2026
Save $7,941 USD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $8,700 USD at Brilliant Earth · As of October 28, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815677230 or 815677230. Listed at 24 retailers as of October 28, 2026, with prices from $759 to $8,700, a $7,941 spread on the same certified stone. Brilliant Earth lists it at $8,700. 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
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677230
Dimensions9.39 × 9.35 × 5.75 mm
L/W Ratio1.00
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
9.39 mm9.35 mm3.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677230
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.4%

Caratlytics Score

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A
Excellent
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: $8,700 USD|Low: $759 USD|High: $9,370 USD|Avg: $2,562 USD|-7.2%
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
October 29, 2026
Retailer 16$759 USD
Retailer 4$1,185 USD
Retailer 13$1,220 USD
Retailer 2$1,256 USD
Retailer 10$1,281 USD
Retailer 11$1,828 USD
Retailer 7$1,831 USD
Retailer 3$1,996 USD
Retailer 6$1,999 USD
Retailer 14$2,135 USD
Retailer 15$2,546 USD
Retailer 5$2,715 USD
Retailer 12$2,721 USD
Retailer 9$3,334 USD
Retailer 8$5,770 USD
Brilliant Earth$8,700 USD

35 data points across 16 retailers

24 retailers$759 USD to $8,700 USD

A
Retailer 1
-
$700 USD
Price last confirmed 18 days ago
A
Retailer 2
-
$721 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
$759 USD
View
Final sale: no returns
A
Retailer 4
-
$784 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
$812 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$812 USD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$824 USD
View
Price last confirmed 34 days ago
A
Retailer 8
-
$1,185 USD
View
A
Retailer 9
-
$1,220 USD
View
A
Retailer 10
-
$1,256 USD
£989 GBP
View
A
Retailer 11
-
$1,281 USD
€1,220 EUR
View
A
Retailer 12
-
$1,828 USD
ZAR 29,527 ZAR
View
A
Retailer 13
-
$1,831 USD
A$2,817 AUD
View
Price last confirmed 8 days ago
A
Retailer 14
-
$1,996 USD
View
A
Retailer 15
-
$1,999 USD
View
A
Retailer 16
-
$2,135 USD
View
A
Retailer 17
-
$2,282 USD
View
Price last confirmed 22 days ago
A
Retailer 18
-
$2,350 USD
View
Price last confirmed 38 days ago
A
Retailer 19
-
$2,546 USD
View
A
Retailer 20
-
$2,715 USD
View
A
Retailer 21
-
$2,721 USD
View
B+
Retailer 22
-
$3,334 USD
£2,625 GBP
View
B
Retailer 23
-
$5,770 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21016998A · Oct 28
$8,700 USD
View
23 more retailers have this diamond
Prices start from $759 USDSave up to $7,941 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
$759 USD