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1.55ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 2474519311

Certificate GIA 2474519311

Diamond specifications and retailer prices

From HK$2,597 HKD
As of November 5, 2026
Save HK$10,269 HKD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$12,866 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 GIA 2474519311. Listed at 16 retailers as of October 31, 2026, with prices from HK$2,597 to HK$12,866, a HK$10,269 spread on the same certified stone. Brilliant Earth lists it at HK$12,866. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 2474519311
Dimensions7.39 × 7.35 × 4.60 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.39 mm7.35 mm1.55 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2474519311
Side View
Table 57.0%Crown 35°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.5%

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$12,866 HKD|Low: HK$2,534 HKD|High: HK$13,290 HKD|Avg: HK$5,961 HKD
Brilliant Earth
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
Retailer 16
November 6, 2026
Retailer 3HK$2,597 HKD
Retailer 8HK$2,958 HKD
Retailer 14HK$3,013 HKD
Retailer 15HK$3,217 HKD
Retailer 6HK$3,256 HKD
Retailer 4HK$4,331 HKD
Retailer 13HK$4,433 HKD
Retailer 16HK$4,511 HKD
Retailer 2HK$4,990 HKD
Retailer 11HK$5,154 HKD
Retailer 5HK$5,547 HKD
Retailer 7HK$5,868 HKD
Retailer 9HK$9,438 HKD
Retailer 12HK$10,340 HKD
Retailer 10HK$12,850 HKD
Brilliant EarthHK$12,866 HKD

45 data points across 16 retailers

16 retailersHK$2,597 HKD to HK$12,866 HKD

A
Cheapest Retailer
-
HK$2,597 HKD
A
Retailer 2
-
HK$2,958 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$3,013 HKD
View
A
Retailer 4
-
HK$3,217 HKD
View
Retailer 5
-
HK$3,256 HKD
View
Price last confirmed 12 days ago
A
Retailer 6
-
HK$4,331 HKD
View
A
Retailer 7
-
HK$4,433 HKD
View
A
Retailer 8
-
HK$4,511 HKD
View
B+
Retailer 9
-
HK$4,990 HKD
View
B+
Retailer 10
-
HK$5,154 HKD
View
B+
Retailer 11
-
HK$5,547 HKD
View
B+
Retailer 12
-
HK$5,868 HKD
View
B
Retailer 13
-
HK$9,438 HKD
View
B
Retailer 14
-
HK$10,340 HKD
View
B
Retailer 15
-
HK$12,850 HKD
View
Most Expensive
B
Brilliant Earth
13393592A · Oct 31
HK$12,866 HKD
$1,640 USD
View
15 more retailers have this diamond
Prices start from HK$2,597 HKDSave up to HK$10,269 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$2,597 HKD