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Round|Lab Grown|IGI

1.55ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG450028046

Shape and cutting style on the report: Round brilliant

Certificate IGI LG450028046

Diamond specifications and retailer prices

From HK$6,747 HKD
As of November 5, 2026
Save HK$29,879 HKD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$36,625 HKD at MOH London · As of November 3, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG450028046 or 450028046. Listed at 12 retailers as of November 3, 2026, with prices from HK$6,747 to HK$36,625, a HK$29,879 spread on the same certified stone. MOH London lists it at HK$36,625. 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

1.55
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450028046
Dimensions7.37 × 7.40 × 4.62 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
7.37 mm7.40 mm1.55 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450028046
Side View
Table 55.5%Crown 35.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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$36,625 HKD|Low: HK$6,747 HKD|High: HK$37,114 HKD|Avg: HK$17,596 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 6HK$6,747 HKD
Retailer 7HK$11,054 HKD
Retailer 11HK$12,027 HKD
Retailer 10HK$12,380 HKD
Retailer 8HK$12,827 HKD
Retailer 13HK$12,827 HKD
Retailer 3HK$14,161 HKD
Retailer 5HK$17,503 HKD
Retailer 9HK$20,233 HKD
Retailer 2HK$23,065 HKD
Retailer 4HK$23,277 HKD
Retailer 12HK$24,038 HKD
MOH LondonHK$36,625 HKD

39 data points across 13 retailers

12 retailersHK$6,747 HKD to HK$36,625 HKD

A
Cheapest Retailer
-
HK$6,747 HKD
B+
Retailer 2
-
HK$11,054 HKD
View
B+
Retailer 3
-
HK$12,027 HKD
View
B+
Retailer 4
-
HK$12,380 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$12,827 HKD
View
Retailer 6
-
HK$12,827 HKD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
HK$14,161 HKD
View
B
Retailer 8
-
HK$20,233 HKD
View
B
Retailer 9
-
HK$23,065 HKD
View
B
Retailer 10
-
HK$23,277 HKD
View
B
Retailer 11
-
HK$24,038 HKD
View
Most Expensive
B
MOH London
LG450028046 · Nov 3
HK$36,625 HKD
£3,676 GBP
View
11 more retailers have this diamond
Prices start from HK$6,747 HKDSave up to HK$29,879 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
1.55ct Round
HK$6,747 HKD