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Radiant|Lab Grown|IGI

1.55ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG514271363

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG514271363

Diamond specifications and retailer prices

From HK$4,354 HKD
$555 USD
As of November 1, 2026
Save HK$15,813 HKD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$20,167 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG514271363 or 514271363. Listed at 14 retailers as of October 26, 2026, with prices from HK$4,354 to HK$20,167, a HK$15,813 spread on the same certified stone. MOH London lists it at HK$20,167. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514271363
Dimensions7.49 × 5.78 × 3.93 mm
L/W Ratio1.30
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
7.49 mm5.78 mm1.55 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514271363
Side View
Table 65.5%Crown 42.2°Girdle: MediumPavilion 30.2°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$20,167 HKD|Low: HK$3,115 HKD|High: HK$20,386 HKD|Avg: HK$8,087 HKD|-0.9%
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 1, 2026
Retailer 10HK$3,891 HKD
Retailer 3HK$4,354 HKD
Retailer 4HK$4,354 HKD
Retailer 11HK$4,825 HKD
Retailer 5HK$4,841 HKD
Retailer 9HK$5,924 HKD
Retailer 6HK$7,027 HKD
Retailer 13HK$7,508 HKD
Retailer 2HK$7,959 HKD
Retailer 7HK$9,258 HKD
Retailer 12HK$12,686 HKD
Retailer 8HK$12,969 HKD
MOH LondonHK$20,167 HKD

42 data points across 13 retailers

14 retailersHK$4,354 HKD to HK$20,167 HKD

Retailer 1
-
HK$3,891 HKD
$496 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
HK$4,354 HKD
$555 USD
View
Final sale: no returns
Retailer 3
-
HK$4,354 HKD
$555 USD
View
Price last confirmed 8 days ago
Retailer 4
-
HK$4,825 HKD
$615 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
HK$4,841 HKD
$617 USD
View
B
Retailer 6
-
HK$5,924 HKD
$755 USD
View
B
Retailer 7
-
HK$7,027 HKD
€853 EUR
View
B
Retailer 8
-
HK$7,508 HKD
$957 USD
View
B
Retailer 9
-
HK$7,959 HKD
£799 GBP
View
B
Retailer 10
-
HK$9,258 HKD
$1,180 USD
View
B
Retailer 11
-
HK$11,215 HKD
£1,126 GBP
View
Retailer 12
-
HK$12,686 HKD
$1,617 USD
View
Price last confirmed 7 days ago
C
Retailer 13
-
HK$12,969 HKD
$1,653 USD
View
Most Expensive
B
MOH London
LG514271363 · Oct 26
HK$20,167 HKD
£2,024 GBP
View
13 more retailers have this diamond
Prices start from HK$4,354 HKDSave up to HK$15,813 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.

B+
1.55ct Radiant
HK$4,354 HKD