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Oval|Lab Grown|IGI

3.05ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG678584148

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584148

Diamond specifications and retailer prices

From $542 SGD
$424 USD
As of November 1, 2026
Save $5,121 SGD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,663 SGD 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678584148 or 678584148. Listed at 16 retailers as of October 31, 2026, with prices from $542 to $5,663, a $5,121 spread on the same certified stone. Brilliant Earth lists it at $5,663. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584148
Dimensions11.45 × 8.26 × 5.07 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.45 mm8.26 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678584148
Side View
Table 61.0%Crown 35.6°Girdle: MediumPavilion 40.1°Culet: NoneDepth 61.4%

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: $5,663 SGD|Low: $542 SGD|High: $5,663 SGD|Avg: $1,426 SGD
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 2, 2026
Retailer 5$542 SGD
Retailer 4$607 SGD
Retailer 11$628 SGD
Retailer 12$672 SGD
Retailer 8$702 SGD
Retailer 16$857 SGD
Retailer 14$901 SGD
Retailer 13$1,057 SGD
Retailer 2$1,108 SGD
Retailer 6$1,175 SGD
Retailer 3$1,333 SGD
Retailer 10$1,613 SGD
Retailer 15$2,160 SGD
Retailer 7$2,416 SGD
Retailer 9$2,469 SGD
Brilliant Earth$5,663 SGD

45 data points across 16 retailers

16 retailers$542 SGD to $5,663 SGD

A
Cheapest Retailer
-
$542 SGD
$424 USD
A
Retailer 2
-
$607 SGD
$475 USD
View
A
Retailer 3
-
$628 SGD
$491 USD
View
Final sale: no returns
A
Retailer 4
-
$672 SGD
$526 USD
View
Retailer 5
-
$702 SGD
$549 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$857 SGD
$670 USD
View
B+
Retailer 7
-
$901 SGD
$705 USD
View
A
Retailer 8
-
$1,057 SGD
$827 USD
View
A
Retailer 9
-
$1,108 SGD
£682 GBP
View
A
Retailer 10
-
$1,175 SGD
€875 EUR
View
A
Retailer 11
-
$1,333 SGD
$1,043 USD
View
B+
Retailer 12
-
$1,613 SGD
$1,262 USD
View
B+
Retailer 13
-
$2,160 SGD
$1,690 USD
View
B+
Retailer 14
-
$2,416 SGD
$1,890 USD
View
B+
Retailer 15
-
$2,469 SGD
£1,521 GBP
View
Most Expensive
B
Brilliant Earth
17470500A · Oct 31
$5,663 SGD
$4,430 USD
View
15 more retailers have this diamond
Prices start from $542 SGDSave up to $5,121 SGD

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
$542 SGD