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Round|Lab Grown|IGI

3.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG616408199

Shape and cutting style on the report: Round brilliant

Certificate IGI LG616408199

Diamond specifications and retailer prices

From HK$3,554 HKD
$453 USD
As of October 27, 2026
Save HK$24,613 HKD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$43,075 HKD at Jared · As of October 28, 2026
View at Jared

About this 3.51ct lab-grown round diamond

This 3.51ct 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 LG616408199 or 616408199. Listed at 11 retailers as of October 27, 2026, with a 692% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG616408199
Dimensions9.75 × 9.78 × 5.96 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
9.75 mm9.78 mm3.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG616408199
Side View
Table 59.0%Crown 34.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.0%

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: Oct 27
Current: HK$16,043 HKD|Low: HK$2,628 HKD|High: HK$29,187 HKD|Avg: HK$11,734 HKD|-3.0%
Retailer 1
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
October 29, 2026
Retailer 15HK$3,178 HKD
Retailer 10HK$3,554 HKD
Retailer 2HK$3,680 HKD
Retailer 8HK$6,078 HKD
Retailer 9HK$6,238 HKD
Retailer 13HK$6,238 HKD
Retailer 6HK$6,987 HKD
Retailer 4HK$7,783 HKD
Retailer 5HK$8,199 HKD
Retailer 11HK$11,039 HKD
Retailer 12HK$13,966 HKD
Retailer 1HK$16,043 HKD
Retailer 7HK$17,943 HKD
Retailer 3HK$26,049 HKD
Retailer 14HK$28,167 HKD

24 data points across 15 retailers

11 retailersHK$3,554 HKD to HK$28,167 HKD

Retailer 1
-
HK$3,178 HKD
$405 USD
Price last confirmed 7 days ago
A
Retailer 2
-
HK$3,554 HKD
$453 USD
View
A
Retailer 3
-
HK$6,078 HKD
£610 GBP
View
A
Retailer 4
-
HK$6,238 HKD
$795 USD
View
B+
Retailer 5
-
HK$6,238 HKD
$795 USD
View
Retailer 6
-
HK$11,039 HKD
$1,407 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$13,966 HKD
$1,780 USD
View
B
Retailer 8
-
HK$16,043 HKD
£1,610 GBP
View
B
Retailer 9
-
HK$26,049 HKD
$3,320 USD
View
B
Retailer 10
-
HK$28,167 HKD
$3,590 USD
View
Most Expensive
Jared
149932601 · Oct 28
HK$43,075 HKD
$5,490 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$3,554 HKDSave up to HK$24,613 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
3.51ct Round
HK$3,554 HKD