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3.71ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG631454051

Shape and cutting style on the report: Round brilliant

Certificate IGI LG631454051

Diamond specifications and retailer prices

From HK$10,210 HKD
CA$1,807 CAD
As of October 30, 2026
Save HK$3,293 HKD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$13,502 HKD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.71ct lab-grown round diamond

This 3.71ct 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 LG631454051 or 631454051. Listed at 2 retailers as of October 30, 2026, with prices from HK$10,210 to HK$13,502, a HK$3,293 spread on the same certified stone. The Diamond Guys lists it at HK$13,502. 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

3.71
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631454051
Dimensions9.99 × 9.91 × 6.11 mm
L/W Ratio1.01
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
9.99 mm9.91 mm3.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631454051
Side View
Table 56.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.4%

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: Oct 30
Current: HK$3,319 HKD|Low: HK$3,170 HKD|High: HK$39,699 HKD|Avg: HK$11,954 HKD|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
September 25, 2026
Retailer 1HK$3,319 HKD
Retailer 10HK$3,727 HKD
Retailer 7HK$5,586 HKD
Retailer 5HK$6,065 HKD
Retailer 6HK$6,236 HKD
Retailer 11HK$8,514 HKD
Retailer 9HK$9,431 HKD
Retailer 2HK$10,210 HKD
Retailer 8HK$10,851 HKD
The Diamond GuysHK$13,502 HKD
Retailer 12HK$17,245 HKD
Retailer 4HK$21,105 HKD
Retailer 3HK$39,699 HKD

3 data points across 13 retailers

2 retailersHK$10,210 HKD to HK$13,502 HKD

B+
Cheapest Retailer
-
HK$10,210 HKD
CA$1,807 CAD
Most Expensive
B
The Diamond Guys
1954434367 · Nov 1
HK$13,502 HKD
$1,721 USD
View
1 more retailer has this diamond
Prices start from HK$10,210 HKDSave up to HK$3,293 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+
3.71ct Round
HK$10,210 HKD