CaratHunter
Plans
Round|Lab Grown|GIA

2.55ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 6495183843

Certificate GIA 6495183843

Diamond specifications and retailer prices

From HK$6,661 HKD
$849 USD
As of October 31, 2026
Save HK$14,993 HKD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$21,654 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.55ct lab-grown round diamond

This 2.55ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6495183843. Listed at 8 retailers as of October 31, 2026, with prices from HK$6,661 to HK$21,654, a HK$14,993 spread on the same certified stone. Brilliant Earth lists it at HK$21,654. 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

2.55
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabGIA
CertificateGIA 6495183843
Dimensions8.88 × 8.85 × 5.32 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
8.88 mm8.85 mm2.55 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6495183843
Side View
Table 59.0%Crown 34.5°Girdle: MED-MEDPavilion 40.6°Culet: NoneDepth 60.0%

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: Oct 31
Current: HK$21,654 HKD|Low: HK$6,661 HKD|High: HK$35,061 HKD|Avg: HK$14,624 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7HK$6,661 HKD
Retailer 5HK$7,963 HKD
Retailer 8HK$8,058 HKD
Retailer 4HK$9,440 HKD
Retailer 3HK$11,923 HKD
Retailer 2HK$12,930 HKD
Retailer 6HK$15,064 HKD
Brilliant EarthHK$21,654 HKD
Retailer 9HK$35,061 HKD

8 data points across 9 retailers

8 retailersHK$6,661 HKD to HK$21,654 HKD

A
Cheapest Retailer
-
HK$6,661 HKD
$849 USD
Final sale: no returns
A
Retailer 2
-
HK$7,963 HKD
$1,015 USD
View
B+
Retailer 3
-
HK$8,058 HKD
$1,027 USD
View
B+
Retailer 4
-
HK$9,440 HKD
View
B+
Retailer 5
-
HK$11,635 HKD
$1,483 USD
View
B
Retailer 6
-
HK$11,923 HKD
A$2,338 AUD
View
Retailer 7
-
HK$15,064 HKD
$1,920 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
16357128Y · Oct 31
HK$21,654 HKD
$2,760 USD
View
7 more retailers have this diamond
Prices start from HK$6,661 HKDSave up to HK$14,993 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
2.55ct Round
HK$6,661 HKD