CaratHunter
Plans
Round|Lab Grown|IGI

0.51ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG741586386

Shape and cutting style on the report: Round brilliant

Certificate IGI LG741586386

Diamond specifications and retailer prices

From HK$730 HKD
As of November 5, 2026
Save HK$5,965 HKD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$6,695 HKD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG741586386 or 741586386. Listed at 18 retailers as of November 4, 2026, with prices from HK$730 to HK$6,695, a HK$5,965 spread on the same certified stone. Reve Diamonds lists it at HK$6,695. 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

0.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741586386
Dimensions5.08 × 5.11 × 3.20 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
5.08 mm5.11 mm0.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741586386
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.8%

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: Nov 5
Current: HK$1,687 HKD|Low: HK$698 HKD|High: HK$6,700 HKD|Avg: HK$2,248 HKD|+7.5%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 6HK$730 HKD
Retailer 13HK$816 HKD
Retailer 7HK$847 HKD
Retailer 3HK$965 HKD
Retailer 15HK$965 HKD
Retailer 10HK$1,177 HKD
Retailer 1HK$1,687 HKD
Retailer 12HK$1,891 HKD
Retailer 2HK$1,899 HKD
Retailer 8HK$2,589 HKD
Retailer 14HK$2,730 HKD
Retailer 5HK$2,918 HKD
Retailer 11HK$3,256 HKD
Retailer 4HK$3,381 HKD
Retailer 9HK$6,653 HKD
Reve DiamondsHK$6,695 HKD

45 data points across 16 retailers

18 retailersHK$730 HKD to HK$6,695 HKD

A
Cheapest Retailer
-
HK$730 HKD
A
Retailer 2
-
HK$816 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$847 HKD
View
Retailer 4
-
HK$965 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
-
HK$965 HKD
View
A
Retailer 6
-
HK$1,177 HKD
View
A
Retailer 7
-
HK$1,687 HKD
View
B+
Retailer 8
-
HK$1,891 HKD
View
B+
Retailer 9
-
HK$1,899 HKD
View
B+
Retailer 10
-
HK$2,134 HKD
View
B+
Retailer 11
-
HK$2,589 HKD
View
B+
Retailer 12
-
HK$2,589 HKD
View
B+
Retailer 13
-
HK$2,730 HKD
View
B+
Retailer 14
-
HK$2,918 HKD
View
B
Retailer 15
-
HK$3,256 HKD
View
B
Retailer 16
-
HK$3,381 HKD
View
B
Retailer 17
-
HK$6,653 HKD
View
Most Expensive
B
Reve Diamonds
633C946FC · Nov 4
HK$6,695 HKD
$853 USD
View
17 more retailers have this diamond
Prices start from HK$730 HKDSave up to HK$5,965 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
0.51ct Round
HK$730 HKD