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Round|Lab Grown|IGI

3.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG687546990

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687546990

Diamond specifications and retailer prices

From HK$2,683 HKD
As of November 5, 2026
Save HK$11,242 HKD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$13,925 HKD at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG687546990 or 687546990. Listed at 15 retailers as of November 4, 2026, with prices from HK$2,683 to HK$13,925, a HK$11,242 spread on the same certified stone. Rare Carat lists it at HK$13,925. 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

3.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687546990
Dimensions9.35 × 9.39 × 5.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.35 mm9.39 mm3.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687546990
Side View
Table 56.0%Crown 34.7°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.6%

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 5
Current: HK$13,925 HKD|Low: HK$2,683 HKD|High: HK$33,358 HKD|Avg: HK$8,511 HKD|-22.9%
Rare Carat
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 5, 2026
Retailer 12HK$2,683 HKD
Retailer 7HK$3,115 HKD
Retailer 6HK$3,326 HKD
Retailer 16HK$3,711 HKD
Retailer 2HK$4,417 HKD
Retailer 13HK$4,511 HKD
Retailer 14HK$5,343 HKD
Retailer 4HK$5,366 HKD
Retailer 15HK$5,829 HKD
Retailer 9HK$5,900 HKD
Retailer 3HK$7,484 HKD
Retailer 11HK$9,759 HKD
Retailer 5HK$10,693 HKD
Retailer 10HK$13,329 HKD
Rare CaratHK$13,925 HKD
Retailer 8HK$33,358 HKD

10 data points across 16 retailers

15 retailersHK$2,683 HKD to HK$13,925 HKD

A
Cheapest Retailer
-
HK$2,683 HKD
A
Retailer 2
-
HK$3,115 HKD
View
A
Retailer 3
-
HK$3,326 HKD
View
A
Retailer 4
-
HK$3,711 HKD
View
A
Retailer 5
-
HK$4,417 HKD
View
A
Retailer 6
-
HK$4,511 HKD
View
Retailer 7
-
HK$5,343 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$5,366 HKD
View
A
Retailer 9
-
HK$5,829 HKD
View
A
Retailer 10
-
HK$5,900 HKD
View
A
Retailer 11
-
HK$7,484 HKD
View
B+
Retailer 12
-
HK$9,759 HKD
View
B+
Retailer 13
-
HK$10,693 HKD
View
B
Retailer 14
-
HK$13,329 HKD
View
Most Expensive
B
Rare Carat
KI9905469KF687 · Nov 4
HK$13,925 HKD
$1,775 USD
View
14 more retailers have this diamond
Prices start from HK$2,683 HKDSave up to HK$11,242 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
3.09ct Round
HK$2,683 HKD