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3.78ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG620425009

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620425009

Diamond specifications and retailer prices

From HK$10,582 HKD
CA$1,873 CAD
As of November 2, 2026
Save HK$3,415 HKD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$13,997 HKD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.78ct lab-grown round diamond

This 3.78ct lab-grown round 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 LG620425009 or 620425009. Listed at 2 retailers as of November 1, 2026, with prices from HK$10,582 to HK$13,997, a HK$3,415 spread on the same certified stone. The Diamond Guys lists it at HK$13,997. 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

3.78
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620425009
Dimensions10.14 × 10.09 × 6.10 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.14 mm10.09 mm3.78 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620425009
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$8,749 HKD|Low: HK$2,103 HKD|High: HK$25,500 HKD|Avg: HK$9,283 HKD|-8.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
The Diamond Guys
August 3, 2026
Retailer 2HK$5,726 HKD
Retailer 4HK$6,221 HKD
Retailer 7HK$6,967 HKD
Retailer 9HK$7,069 HKD
Retailer 6HK$8,191 HKD
Retailer 3HK$8,474 HKD
Retailer 1HK$8,749 HKD
Retailer 5HK$10,582 HKD
Retailer 10HK$13,731 HKD
The Diamond GuysHK$13,997 HKD
Retailer 8HK$21,812 HKD

59 data points across 11 retailers

2 retailersHK$10,582 HKD to HK$13,997 HKD

B+
Cheapest Retailer
-
HK$10,582 HKD
CA$1,873 CAD
Most Expensive
B
The Diamond Guys
1954434357 · Nov 1
HK$13,997 HKD
$1,784 USD
View
1 more retailer has this diamond
Prices start from HK$10,582 HKDSave up to HK$3,415 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.

B+
3.78ct Round
HK$10,582 HKD