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Round|Lab Grown|IGI

2.56ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG618458044

Shape and cutting style on the report: Round brilliant

Certificate IGI LG618458044

Diamond specifications and retailer prices

From HK$3,633 HKD
$463 USD
As of October 31, 2026
Save HK$14,805 HKD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$18,437 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.56ct lab-grown round diamond

This 2.56ct 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 IGI LG618458044 or 618458044. Listed at 17 retailers as of October 29, 2026, with prices from HK$3,633 to HK$18,437, a HK$14,805 spread on the same certified stone. Brilliant Earth lists it at HK$18,437. 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

2.56
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618458044
Dimensions8.78 × 8.72 × 5.41 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
8.78 mm8.72 mm2.56 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618458044
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.8%

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$18,437 HKD|Low: HK$3,633 HKD|High: HK$18,987 HKD|Avg: HK$8,844 HKD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10HK$3,633 HKD
Retailer 4HK$4,033 HKD
Retailer 9HK$5,865 HKD
Retailer 3HK$6,253 HKD
Retailer 12HK$6,379 HKD
Retailer 7HK$6,394 HKD
Retailer 2HK$6,483 HKD
Retailer 5HK$6,617 HKD
Retailer 8HK$10,042 HKD
Retailer 11HK$14,279 HKD
Retailer 6HK$14,896 HKD
Brilliant EarthHK$18,437 HKD

42 data points across 12 retailers

17 retailersHK$3,633 HKD to HK$18,437 HKD

Retailer 1
-
HK$3,248 HKD
$414 USD
Price last confirmed 39 days ago
A
Retailer 2
-
HK$3,633 HKD
$463 USD
View
Final sale: no returns
Retailer 3
-
HK$3,640 HKD
$464 USD
View
Price last confirmed 38 days ago
Retailer 4
-
HK$3,978 HKD
$507 USD
View
Price last confirmed 39 days ago
Retailer 5
-
HK$5,865 HKD
£589 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
HK$6,253 HKD
$797 USD
View
B+
Retailer 7
-
HK$6,379 HKD
$813 USD
View
B+
Retailer 8
-
HK$6,394 HKD
$815 USD
View
A
Retailer 9
-
HK$6,483 HKD
€787 EUR
View
A
Retailer 10
-
HK$6,617 HKD
£664 GBP
View
B+
Retailer 11
-
HK$8,199 HKD
$1,045 USD
View
B+
Retailer 12
-
HK$10,042 HKD
$1,280 USD
View
Retailer 13
-
HK$12,961 HKD
$1,652 USD
View
Price last confirmed 40 days ago
B
Retailer 14
-
HK$13,230 HKD
$1,686 USD
View
Retailer 15
-
HK$14,279 HKD
$1,820 USD
View
Price last confirmed 16 days ago
B
Retailer 16
-
HK$14,896 HKD
£1,495 GBP
View
Most Expensive
B
Brilliant Earth
14981557A · Oct 29
HK$18,437 HKD
$2,350 USD
View
16 more retailers have this diamond
Prices start from HK$3,633 HKDSave up to HK$14,805 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
2.56ct Round
HK$3,633 HKD