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Round|Lab Grown|IGI

3.09ct G IF Round Lab Grown Diamond

EX • G/IF • IGI LG669421282

Shape and cutting style on the report: Round brilliant

Certificate IGI LG669421282

Diamond specifications and retailer prices

From $770 USD
As of October 29, 2026
Save $5,140 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,910 USD at Brilliant Earth · As of October 30, 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG669421282 or 669421282. Listed at 21 retailers as of October 29, 2026, with prices from $770 to $5,910, a $5,140 spread on the same certified stone. Brilliant Earth lists it at $5,910. 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
G
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669421282
Dimensions9.26 × 9.31 × 5.82 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 Faint Blue
Top View
9.26 mm9.31 mm3.09 ctG / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669421282
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
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: $5,910 USD|Low: $739 USD|High: $8,380 USD|Avg: $2,190 USD|-29.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
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Retailer 12
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Retailer 20
October 30, 2026
Retailer 19$770 USD
Retailer 10$837 USD
Retailer 20$862 USD
Retailer 3$893 USD
Retailer 11$1,037 USD
Retailer 16$1,070 USD
Retailer 5$1,192 USD
Retailer 7$1,278 USD
Retailer 2$1,363 USD
Retailer 15$1,570 USD
Retailer 18$1,934 USD
Retailer 17$2,014 USD
Retailer 14$2,073 USD
Retailer 4$2,415 USD
Retailer 6$2,510 USD
Retailer 12$3,001 USD
Retailer 8$3,018 USD
Retailer 9$3,083 USD
Retailer 13$3,364 USD
Brilliant Earth$5,910 USD

42 data points across 20 retailers

21 retailers$770 USD to $5,910 USD

A
Cheapest Retailer
-
$770 USD
A
Retailer 2
-
$837 USD
View
A
Retailer 3
-
$862 USD
View
Final sale: no returns
Retailer 4
-
$893 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$893 USD
View
A
Retailer 6
-
$1,037 USD
HK$8,100 HKD
View
A
Retailer 7
-
$1,070 USD
View
A
Retailer 8
-
$1,192 USD
View
A
Retailer 9
-
$1,278 USD
View
A
Retailer 10
-
$1,363 USD
£1,073 GBP
View
A
Retailer 11
-
$1,570 USD
€1,495 EUR
View
B+
Retailer 12
-
$1,934 USD
View
Retailer 13
-
$2,014 USD
A$3,099 AUD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$2,073 USD
ZAR 33,485 ZAR
View
B+
Retailer 15
-
$2,415 USD
View
B+
Retailer 16
-
$2,510 USD
View
B+
Retailer 17
-
$3,001 USD
SGD 4,055 SGD
View
B+
Retailer 18
-
$3,018 USD
View
B+
Retailer 19
-
$3,083 USD
View
B+
Retailer 20
-
$3,364 USD
£2,649 GBP
View
Most Expensive
B
Brilliant Earth
15028441A · Oct 30
$5,910 USD
View
20 more retailers have this diamond
Prices start from $770 USDSave up to $5,140 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
$770 USD