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Round|Lab Grown|IGI

4.51ct H VVS2 Round Lab Grown Diamond

EX • H/VVS2 • IGI LG782679450

Shape and cutting style on the report: Round brilliant

Certificate IGI LG782679450

Diamond specifications and retailer prices

From HK$7,830 HKD
$998 USD
As of October 30, 2026
Save HK$24,887 HKD (76%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$32,717 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.51ct lab-grown round diamond

This 4.51ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG782679450 or 782679450. Listed at 9 retailers as of October 30, 2026, with prices from HK$7,830 to HK$32,717, a HK$24,887 spread on the same certified stone. Brilliant Earth lists it at HK$32,717. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.51
Carat
H
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782679450
Dimensions10.69 × 10.73 × 6.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.69 mm10.73 mm4.51 ctH / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782679450
Side View
Table 60.0%Crown 32.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.6%

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 30
Current: HK$32,717 HKD|Low: HK$7,650 HKD|High: HK$66,249 HKD|Avg: HK$22,979 HKD|-45.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 9HK$7,830 HKD
Retailer 5HK$8,134 HKD
Retailer 4HK$9,564 HKD
Retailer 8HK$12,388 HKD
Retailer 10HK$12,922 HKD
Retailer 6HK$14,114 HKD
Retailer 7HK$18,874 HKD
Retailer 11HK$22,753 HKD
Retailer 2HK$25,468 HKD
Brilliant EarthHK$32,717 HKD
Retailer 3HK$66,249 HKD

31 data points across 11 retailers

9 retailersHK$7,830 HKD to HK$32,717 HKD

B+
Cheapest Retailer
-
HK$7,830 HKD
$998 USD
A
Retailer 2
-
HK$8,134 HKD
View
A
Retailer 3
-
HK$9,564 HKD
€1,161 EUR
View
B+
Retailer 4
-
HK$12,388 HKD
$1,579 USD
View
B+
Retailer 5
-
HK$14,114 HKD
$1,799 USD
View
B+
Retailer 6
-
HK$18,874 HKD
$2,406 USD
View
B
Retailer 7
-
HK$22,753 HKD
CA$4,028 CAD
View
B
Retailer 8
-
HK$25,468 HKD
£2,556 GBP
View
Most Expensive
B
Brilliant Earth
18268884A · Oct 30
HK$32,717 HKD
$4,170 USD
View
8 more retailers have this diamond
Prices start from HK$7,830 HKDSave up to HK$24,887 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
4.51ct Round
HK$7,830 HKD