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Round|Lab Grown|IGI

3.71ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG628436131

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628436131

Diamond specifications and retailer prices

From HK$3,264 HKD
$416 USD
As of October 26, 2026
Save HK$25,687 HKD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$46,917 HKD at Jared · As of October 28, 2026
View at Jared

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 LG628436131 or 628436131. Listed at 12 retailers as of October 26, 2026, with a 787% 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

3.71
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628436131
Dimensions9.93 × 9.97 × 5.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
9.93 mm9.97 mm3.71 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628436131
Side View
Table 58.0%Crown 32.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.2%

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 26
Current: HK$16,500 HKD|Low: HK$2,675 HKD|High: HK$29,657 HKD|Avg: HK$11,787 HKD|-1.8%
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
October 29, 2026
Retailer 14HK$3,264 HKD
Retailer 8HK$3,656 HKD
Retailer 2HK$3,742 HKD
Retailer 9HK$6,222 HKD
Retailer 7HK$6,394 HKD
Retailer 12HK$6,394 HKD
Retailer 5HK$7,668 HKD
Retailer 6HK$8,238 HKD
Retailer 4HK$8,583 HKD
Retailer 10HK$11,353 HKD
Retailer 11HK$14,365 HKD
Retailer 1HK$16,500 HKD
Retailer 3HK$27,538 HKD
Retailer 13HK$28,951 HKD

33 data points across 14 retailers

12 retailersHK$3,264 HKD to HK$28,951 HKD

A
Cheapest Retailer
-
HK$3,264 HKD
$416 USD
A
Retailer 2
-
HK$3,656 HKD
$466 USD
View
A
Retailer 3
-
HK$3,742 HKD
$477 USD
View
Final sale: no returns
Retailer 4
-
HK$6,222 HKD
£624 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
HK$6,394 HKD
$815 USD
View
A
Retailer 6
-
HK$6,394 HKD
$815 USD
View
B+
Retailer 7
-
HK$11,353 HKD
$1,447 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
HK$14,365 HKD
$1,831 USD
View
B
Retailer 9
-
HK$16,500 HKD
£1,656 GBP
View
B
Retailer 10
-
HK$27,538 HKD
$3,510 USD
View
B
Retailer 11
-
HK$28,951 HKD
$3,690 USD
View
Most Expensive
Jared
150918726 · Oct 28
HK$46,917 HKD
$5,980 USD
View
Price under review
11 more retailers have this diamond
Prices start from HK$3,264 HKDSave up to HK$25,687 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
3.71ct Round
HK$3,264 HKD