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Round|Lab Grown|IGI

3.09ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG743594170

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743594170

Diamond specifications and retailer prices

From $839 USD
As of October 29, 2026
Save $9,231 USD (92%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $10,070 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 LG743594170 or 743594170. Listed at 28 retailers as of October 29, 2026, with prices from $839 to $10,070, a $9,231 spread on the same certified stone. Brilliant Earth lists it at $10,070. 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 angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743594170
Dimensions9.42 × 9.37 × 5.72 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
9.42 mm9.37 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743594170
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

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: $10,070 USD|Low: $839 USD|High: $10,070 USD|Avg: $3,145 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 3$839 USD
Retailer 21$913 USD
Retailer 7$973 USD
Retailer 6$1,284 USD
Retailer 12$1,610 USD
Retailer 17$1,610 USD
Retailer 2$1,648 USD
Retailer 16$1,715 USD
Retailer 19$2,228 USD
Retailer 8$2,237 USD
Retailer 20$2,423 USD
Retailer 13$2,494 USD
Retailer 4$3,019 USD
Retailer 9$3,044 USD
Retailer 10$3,203 USD
Retailer 15$3,661 USD
Retailer 14$5,119 USD
Retailer 5$5,490 USD
Retailer 11$7,450 USD
Retailer 18$9,354 USD
Brilliant Earth$10,070 USD

35 data points across 21 retailers

28 retailers$839 USD to $10,070 USD

A
Cheapest Retailer
-
$839 USD
A
Retailer 2
-
$913 USD
View
A
Retailer 3
-
$973 USD
View
A
Retailer 4
-
$1,061 USD
View
Final sale: no returns
A
Retailer 5
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$1,268 USD
View
Retailer 6
-
$1,284 USD
£1,011 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
$1,370 USD
HK$10,700 HKD
View
A
Retailer 8
-
$1,610 USD
View
A
Retailer 9
-
$1,610 USD
View
A
Retailer 10
-
$1,648 USD
£1,298 GBP
View
A
Retailer 11
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$1,715 USD
€1,633 EUR
View
A
Retailer 12
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$1,853 USD
View
A
Retailer 13
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$2,228 USD
A$3,428 AUD
View
A
Retailer 14
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$2,237 USD
View
Retailer 15
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$2,423 USD
A$3,728 AUD
View
Price last confirmed 8 days ago
A
Retailer 16
-
$2,494 USD
ZAR 40,284 ZAR
View
A
Retailer 17
-
$2,746 USD
View
B+
Retailer 18
-
$3,019 USD
View
B+
Retailer 19
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$3,044 USD
View
B+
Retailer 20
-
$3,203 USD
View
B+
Retailer 21
-
$3,661 USD
£2,883 GBP
View
B+
Retailer 22
-
$3,827 USD
View
B+
Retailer 23
-
$3,978 USD
SGD 5,376 SGD
View
Retailer 24
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$5,119 USD
A$7,876 AUD
View
Price last confirmed 27 days ago
Retailer 25
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$5,490 USD
View
Price last confirmed 12 days ago
B
Retailer 26
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$7,450 USD
View
B
Retailer 27
-
$9,354 USD
View
Most Expensive
B
Brilliant Earth
18652381Y · Oct 29
$10,070 USD
View
27 more retailers have this diamond
Prices start from $839 USDSave up to $9,231 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
$839 USD