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0.55ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG451055359

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055359

Diamond specifications and retailer prices

From HK$2,307 HKD
$294 USD
As of November 1, 2026
Save HK$9,212 HKD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$11,518 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.55ct lab-grown round diamond

This 0.55ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055359 or 451055359. Listed at 11 retailers as of October 29, 2026, with prices from HK$2,307 to HK$11,518, a HK$9,212 spread on the same certified stone. MOH London lists it at HK$11,518. 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

0.55
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055359
Dimensions5.18 × 5.21 × 3.28 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
5.18 mm5.21 mm0.55 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451055359
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.0%

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: Nov 1
Current: HK$11,518 HKD|Low: HK$2,212 HKD|High: HK$11,588 HKD|Avg: HK$4,910 HKD|-0.5%
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
October 29, 2026
Retailer 7HK$2,307 HKD
Retailer 12HK$2,581 HKD
Retailer 3HK$2,675 HKD
Retailer 8HK$2,824 HKD
Retailer 9HK$2,856 HKD
Retailer 11HK$2,856 HKD
Retailer 4HK$4,080 HKD
Retailer 10HK$4,684 HKD
Retailer 2HK$5,297 HKD
Retailer 5HK$5,704 HKD
Retailer 6HK$8,779 HKD
Retailer 13HK$9,187 HKD
MOH LondonHK$11,518 HKD

20 data points across 13 retailers

11 retailersHK$2,307 HKD to HK$11,518 HKD

A
Cheapest Retailer
-
HK$2,307 HKD
$294 USD
A
Retailer 2
-
HK$2,581 HKD
$329 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,675 HKD
$341 USD
View
B+
Retailer 4
-
HK$2,824 HKD
$360 USD
View
Retailer 5
-
HK$2,856 HKD
$364 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
HK$2,856 HKD
$364 USD
View
B+
Retailer 7
-
HK$4,684 HKD
$597 USD
View
B+
Retailer 8
-
HK$5,297 HKD
€643 EUR
View
B
Retailer 9
-
HK$8,779 HKD
$1,119 USD
View
B
Retailer 10
-
HK$9,187 HKD
$1,171 USD
View
Most Expensive
B
MOH London
LG451055359 · Oct 29
HK$11,518 HKD
£1,156 GBP
View
10 more retailers have this diamond
Prices start from HK$2,307 HKDSave up to HK$9,212 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
0.55ct Round
HK$2,307 HKD