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Oval|Lab Grown|IGI

4.00ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG816627606

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816627606

Diamond specifications and retailer prices

From $3,899 SGD
$3,050 USD
As of October 31, 2026
2 retailers carry this diamond
Most expensive: $3,899 SGD at Brilliant Earth
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct 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 LG816627606 or 816627606. Listed at 2 retailers as of October 31, 2026. 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

4.00
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816627606
Dimensions13.48 × 8.14 × 4.85 mm
L/W Ratio1.66
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.48 mm8.14 mm4.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816627606
Side View
Table 61.0%Crown 32.6°Girdle: Slightly ThickPavilion 39.2°Culet: NoneDepth 59.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $3,899 SGD|Low: $780 SGD|High: $7,645 SGD|Avg: $2,180 SGD|-49.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
August 27, 2026
Retailer 3$946 SGD
Retailer 6$1,004 SGD
Retailer 9$1,017 SGD
Retailer 5$1,029 SGD
Retailer 7$1,416 SGD
Retailer 8$1,534 SGD
Retailer 4$2,308 SGD
Retailer 2$2,738 SGD
Brilliant Earth$3,899 SGD

15 data points across 9 retailers

2 retailers

Retailer 1
-
$2,738 SGD
$2,142 USD
Price last confirmed 66 days ago
Most Expensive
B
Brilliant Earth
20815188A · Oct 31
$3,899 SGD
$3,050 USD
View
1 more retailer has this diamond

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.

B
4.00ct Oval
$3,899 SGD