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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 HK$4,119 HKD
$525 USD
As of November 1, 2026
Save HK$19,262 HKD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$23,381 HKD 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 HK$4,119 to HK$23,381, a HK$19,262 spread on the same certified stone. Brilliant Earth lists it at HK$23,381. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$23,381 HKD|Low: HK$4,119 HKD|High: HK$41,741 HKD|Avg: HK$11,415 HKD|-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 6HK$4,119 HKD
Retailer 3HK$4,614 HKD
Retailer 12HK$4,614 HKD
Retailer 15HK$5,108 HKD
Retailer 13HK$6,198 HKD
Retailer 9HK$6,256 HKD
Retailer 10HK$7,858 HKD
Retailer 5HK$7,909 HKD
Retailer 16HK$8,097 HKD
Retailer 7HK$11,126 HKD
Retailer 2HK$11,604 HKD
Retailer 14HK$13,440 HKD
Retailer 8HK$16,609 HKD
Retailer 4HK$18,007 HKD
Retailer 11HK$21,334 HKD
Brilliant EarthHK$23,381 HKD

14 data points across 16 retailers

16 retailersHK$4,119 HKD to HK$23,381 HKD

A
Cheapest Retailer
-
HK$4,119 HKD
$525 USD
A
Retailer 2
-
HK$4,614 HKD
$588 USD
View
A
Retailer 3
-
HK$4,614 HKD
$588 USD
View
Final sale: no returns
A
Retailer 4
-
HK$5,108 HKD
$651 USD
View
A
Retailer 5
-
HK$6,198 HKD
$790 USD
View
A
Retailer 6
-
HK$6,256 HKD
£628 GBP
View
A
Retailer 7
-
HK$7,858 HKD
£789 GBP
View
B+
Retailer 8
-
HK$7,909 HKD
$1,008 USD
View
B+
Retailer 9
-
HK$8,097 HKD
$1,032 USD
View
B+
Retailer 10
-
HK$11,126 HKD
$1,418 USD
View
B+
Retailer 11
-
HK$11,604 HKD
$1,479 USD
View
B+
Retailer 12
-
HK$13,440 HKD
$1,713 USD
View
B
Retailer 13
-
HK$16,609 HKD
$2,117 USD
View
B
Retailer 14
-
HK$18,007 HKD
$2,295 USD
View
B
Retailer 15
-
HK$21,334 HKD
£2,141 GBP
View
Most Expensive
B
Brilliant Earth
22219862A · Nov 1
HK$23,381 HKD
$2,980 USD
View
15 more retailers have this diamond
Prices start from HK$4,119 HKDSave up to HK$19,262 HKD

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
HK$4,119 HKD