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1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG783641986

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783641986

Diamond specifications and retailer prices

From HK$2,157 HKD
As of November 6, 2026
Save HK$6,461 HKD (75%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$8,618 HKD at MOH London · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783641986 or 783641986. Listed at 19 retailers as of November 5, 2026, with prices from HK$2,157 to HK$8,618, a HK$6,461 spread on the same certified stone. MOH London lists it at HK$8,618. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783641986
Dimensions7.42 × 7.38 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.42 mm7.38 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783641986
Side View
Table 57.0%Crown 34.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$8,618 HKD|Low: HK$1,742 HKD|High: HK$8,738 HKD|Avg: HK$4,582 HKD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11HK$1,742 HKD
Retailer 3HK$2,157 HKD
Retailer 10HK$2,157 HKD
Retailer 12HK$2,903 HKD
Retailer 2HK$3,546 HKD
Retailer 5HK$3,962 HKD
Retailer 4HK$4,158 HKD
Retailer 9HK$4,370 HKD
Retailer 7HK$5,962 HKD
Retailer 8HK$6,951 HKD
Retailer 6HK$8,316 HKD
MOH LondonHK$8,618 HKD

43 data points across 12 retailers

19 retailersHK$2,157 HKD to HK$8,618 HKD

Retailer 1
-
HK$1,742 HKD
Price last confirmed 27 days ago
Retailer 2
-
HK$2,016 HKD
View
Price last confirmed 24 days ago
Retailer 3
-
HK$2,157 HKD
View
Price last confirmed 12 days ago
Retailer 4
-
HK$2,157 HKD
View
Price last confirmed 35 days ago
A
Retailer 5
-
HK$2,157 HKD
View
B+
Retailer 6
-
HK$2,903 HKD
View
A
Retailer 7
-
HK$3,546 HKD
View
A
Retailer 8
-
HK$3,648 HKD
View
A
Retailer 9
-
HK$3,962 HKD
View
A
Retailer 10
-
HK$4,158 HKD
View
B+
Retailer 11
-
HK$4,370 HKD
View
B+
Retailer 12
-
HK$5,696 HKD
View
B+
Retailer 13
-
HK$5,962 HKD
View
Retailer 14
-
HK$6,927 HKD
View
Price last confirmed 30 days ago
B
Retailer 15
-
HK$6,951 HKD
View
B
Retailer 16
-
HK$6,974 HKD
View
B
Retailer 17
-
HK$8,237 HKD
View
B
Retailer 18
-
HK$8,316 HKD
View
Most Expensive
B
MOH London
LG783641986 · Nov 5
HK$8,618 HKD
£865 GBP
View
18 more retailers have this diamond
Prices start from HK$2,157 HKDSave up to HK$6,461 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$2,157 HKD