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Oval|Lab Grown|IGI

3.07ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG678584138

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584138

Diamond specifications and retailer prices

From $366 USD
As of October 27, 2026
Save $1,874 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,240 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.07ct lab-grown oval diamond

This 3.07ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678584138 or 678584138. Listed at 17 retailers as of October 27, 2026, with prices from $366 to $2,240, a $1,874 spread on the same certified stone. Brilliant Earth lists it at $2,240. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.07
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584138
Dimensions12.07 × 8.24 × 5.06 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm8.24 mm3.07 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678584138
Side View
Table 60.0%Crown 33.8°Girdle: THN-MEDPavilion 40.7°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 27
Current: $2,240 USD|Low: $366 USD|High: $2,240 USD|Avg: $939 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
November 1, 2026
Retailer 4$366 USD
Retailer 12$419 USD
Retailer 3$425 USD
Retailer 7$492 USD
Retailer 8$492 USD
Retailer 15$605 USD
Retailer 11$610 USD
Retailer 13$770 USD
Retailer 2$820 USD
Retailer 9$854 USD
Retailer 16$1,088 USD
Retailer 10$1,140 USD
Retailer 14$1,460 USD
Retailer 6$1,900 USD
Retailer 5$1,924 USD
Brilliant Earth$2,240 USD

46 data points across 16 retailers

17 retailers$366 USD to $2,240 USD

A
Cheapest Retailer
-
$366 USD
A
Retailer 2
-
$419 USD
View
Final sale: no returns
A
Retailer 3
-
$425 USD
View
Retailer 4
-
$492 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$492 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$605 USD
View
B+
Retailer 7
-
$610 USD
View
A
Retailer 8
-
$770 USD
View
A
Retailer 9
-
$820 USD
£645 GBP
View
A
Retailer 10
-
$854 USD
€813 EUR
View
B+
Retailer 11
-
$1,088 USD
View
B+
Retailer 12
-
$1,140 USD
View
B+
Retailer 13
-
$1,460 USD
View
Retailer 14
-
$1,900 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$1,924 USD
£1,515 GBP
View
B
Retailer 16
-
$2,240 USD
View
Most Expensive
B
Brilliant Earth
17470963A · Oct 31
$2,240 USD
View
16 more retailers have this diamond
Prices start from $366 USDSave up to $1,874 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
3.07ct Oval
$366 USD