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1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG772678680

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772678680

Diamond specifications and retailer prices

From HK$1,546 HKD
As of November 1, 2026
Save HK$13,282 HKD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$14,827 HKD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG772678680 or 772678680. Listed at 15 retailers as of November 1, 2026, with prices from HK$1,546 to HK$14,827, a HK$13,282 spread on the same certified stone. Do Amore Diamonds lists it at HK$14,827. 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 angle34.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772678680
Dimensions7.42 × 7.46 × 0.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.42 mm7.46 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772678680
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.9%

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$14,827 HKD|Low: HK$1,483 HKD|High: HK$14,827 HKD|Avg: HK$5,691 HKD
Do Amore Diamonds
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
November 2, 2026
Retailer 12HK$1,546 HKD
Retailer 3HK$1,797 HKD
Retailer 14HK$2,589 HKD
Retailer 7HK$2,863 HKD
Retailer 9HK$3,421 HKD
Retailer 5HK$3,656 HKD
Retailer 10HK$4,425 HKD
Retailer 8HK$5,570 HKD
Retailer 11HK$5,845 HKD
Retailer 15HK$6,300 HKD
Retailer 4HK$6,802 HKD
Retailer 2HK$8,473 HKD
Retailer 6HK$8,481 HKD
Retailer 13HK$8,944 HKD
Do Amore DiamondsHK$14,827 HKD

25 data points across 15 retailers

15 retailersHK$1,546 HKD to HK$14,827 HKD

A
Cheapest Retailer
-
HK$1,546 HKD
A
Retailer 2
-
HK$1,797 HKD
View
B+
Retailer 3
-
HK$2,589 HKD
View
A
Retailer 4
-
HK$2,863 HKD
View
A
Retailer 5
-
HK$3,421 HKD
View
A
Retailer 6
-
HK$3,656 HKD
View
B+
Retailer 7
-
HK$4,425 HKD
View
B+
Retailer 8
-
HK$5,570 HKD
View
B+
Retailer 9
-
HK$5,845 HKD
View
B+
Retailer 10
-
HK$6,300 HKD
View
B
Retailer 11
-
HK$6,802 HKD
View
B
Retailer 12
-
HK$8,473 HKD
View
B
Retailer 13
-
HK$8,481 HKD
View
B
Retailer 14
-
HK$8,944 HKD
View
Most Expensive
B
Do Amore Diamonds
27-F2486157E · Nov 2
HK$14,827 HKD
$1,890 USD
View
14 more retailers have this diamond
Prices start from HK$1,546 HKDSave up to HK$13,282 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$1,546 HKD