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Oval|Lab Grown|IGI

3.66ct F SI1 Oval Lab Grown Diamond

VG • F/SI1 • IGI LG847653874

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG847653874

Diamond specifications and retailer prices

From $749 AUD
$525 USD
As of November 1, 2026
Save $3,503 AUD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,252 AUD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 3.66ct lab-grown oval diamond

This 3.66ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG847653874 or 847653874. Listed at 16 retailers as of November 1, 2026, with prices from $749 to $4,252, a $3,503 spread on the same certified stone. Brilliant Earth lists it at $4,252. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.66
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847653874
Dimensions12.44 × 8.67 × 4.93 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.44 mm8.67 mm3.66 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847653874
Side View
Table 60.0%Crown 38.9°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 56.9%

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: Nov 1
Current: $4,252 AUD|Low: $749 AUD|High: $7,591 AUD|Avg: $2,076 AUD|-44.0%
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 6$749 AUD
Retailer 3$839 AUD
Retailer 12$839 AUD
Retailer 15$929 AUD
Retailer 13$1,127 AUD
Retailer 9$1,138 AUD
Retailer 10$1,429 AUD
Retailer 5$1,438 AUD
Retailer 16$1,473 AUD
Retailer 7$2,023 AUD
Retailer 2$2,110 AUD
Retailer 14$2,444 AUD
Retailer 8$3,021 AUD
Retailer 4$3,275 AUD
Retailer 11$3,880 AUD
Brilliant Earth$4,252 AUD

14 data points across 16 retailers

16 retailers$749 AUD to $4,252 AUD

A
Cheapest Retailer
-
$749 AUD
$525 USD
A
Retailer 2
-
$839 AUD
$588 USD
View
A
Retailer 3
-
$839 AUD
$588 USD
View
Final sale: no returns
A
Retailer 4
-
$929 AUD
$651 USD
View
A
Retailer 5
-
$1,127 AUD
$790 USD
View
A
Retailer 6
-
$1,138 AUD
£628 GBP
View
A
Retailer 7
-
$1,429 AUD
£789 GBP
View
B+
Retailer 8
-
$1,438 AUD
$1,008 USD
View
B+
Retailer 9
-
$1,473 AUD
$1,032 USD
View
B+
Retailer 10
-
$2,023 AUD
$1,418 USD
View
B+
Retailer 11
-
$2,110 AUD
$1,479 USD
View
B+
Retailer 12
-
$2,444 AUD
$1,713 USD
View
B
Retailer 13
-
$3,021 AUD
$2,117 USD
View
B
Retailer 14
-
$3,275 AUD
$2,295 USD
View
B
Retailer 15
-
$3,880 AUD
£2,141 GBP
View
Most Expensive
B
Brilliant Earth
22219862A · Nov 1
$4,252 AUD
$2,980 USD
View
15 more retailers have this diamond
Prices start from $749 AUDSave up to $3,503 AUD

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
3.66ct Oval
$749 AUD