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Oval|Lab Grown|IGI

3.05ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG678584132

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584132

Diamond specifications and retailer prices

From $608 USD
As of November 1, 2026
Save $1,622 USD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,230 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.05ct lab-grown oval diamond

This 3.05ct 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 LG678584132 or 678584132. Listed at 15 retailers as of October 31, 2026, with prices from $608 to $2,230, a $1,622 spread on the same certified stone. Brilliant Earth lists it at $2,230. 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

3.05
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584132
Dimensions11.67 × 8.25 × 5.11 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.67 mm8.25 mm3.05 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678584132
Side View
Table 59.0%Crown 33.7°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.9%

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: Nov 1
Current: $2,230 USD|Low: $364 USD|High: $2,230 USD|Avg: $929 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$364 USD
Retailer 3$416 USD
Retailer 16$422 USD
Retailer 7$489 USD
Retailer 8$489 USD
Retailer 14$600 USD
Retailer 11$608 USD
Retailer 12$767 USD
Retailer 9$814 USD
Retailer 5$848 USD
Retailer 15$1,074 USD
Retailer 10$1,133 USD
Retailer 13$1,451 USD
Retailer 2$1,764 USD
Retailer 6$1,885 USD
Brilliant Earth$2,230 USD

41 data points across 16 retailers

15 retailers$608 USD to $2,230 USD

Retailer 1
-
$364 USD
Price last confirmed 10 days ago
Retailer 2
-
$422 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$489 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$489 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$600 USD
View
Price last confirmed 4 days ago
B+
Retailer 6
-
$608 USD
View
A
Retailer 7
-
$767 USD
View
A
Retailer 8
-
$814 USD
View
A
Retailer 9
-
$848 USD
View
B+
Retailer 10
-
$1,074 USD
View
B+
Retailer 11
-
$1,133 USD
View
Retailer 12
-
$1,451 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$1,764 USD
View
Retailer 14
-
$1,885 USD
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
17470285A · Oct 31
$2,230 USD
View
14 more retailers have this diamond
Prices start from $608 USDSave up to $1,622 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
3.05ct Oval
$608 USD