CaratHunter
Plans
Radiant|Lab Grown|IGI

4.78ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG831678037

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG831678037

Diamond specifications and retailer prices

From HK$4,747 HKD
$605 USD
As of October 27, 2026
Save HK$28,048 HKD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$32,795 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.78ct lab-grown radiant diamond

This 4.78ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831678037 or 831678037. Listed at 15 retailers as of October 27, 2026, with prices from HK$4,747 to HK$32,795, a HK$28,048 spread on the same certified stone. Brilliant Earth lists it at HK$32,795. 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

4.78
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831678037
Dimensions11.74 × 8.35 × 5.67 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.74 mm8.35 mm4.78 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831678037
Side View
Table 68.0%Crown 44.1°Girdle: ThickPavilion 35.6°Culet: NoneDepth 67.9%

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 27
Current: HK$32,795 HKD|Low: HK$4,558 HKD|High: HK$33,109 HKD|Avg: HK$14,683 HKD|-0.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 7HK$4,747 HKD
Retailer 4HK$5,241 HKD
Retailer 10HK$5,523 HKD
Retailer 11HK$6,826 HKD
Retailer 3HK$7,783 HKD
Retailer 8HK$8,938 HKD
Retailer 5HK$11,867 HKD
Retailer 9HK$12,310 HKD
Retailer 15HK$13,526 HKD
Retailer 12HK$15,268 HKD
Retailer 13HK$17,598 HKD
Retailer 6HK$24,361 HKD
Retailer 2HK$25,199 HKD
Retailer 14HK$25,601 HKD
Brilliant EarthHK$32,795 HKD

33 data points across 15 retailers

15 retailersHK$4,747 HKD to HK$32,795 HKD

A
Cheapest Retailer
-
HK$4,747 HKD
$605 USD
A
Retailer 2
-
HK$5,241 HKD
$668 USD
View
A
Retailer 3
-
HK$5,523 HKD
$704 USD
View
Final sale: no returns
A
Retailer 4
-
HK$6,826 HKD
$870 USD
View
B+
Retailer 5
-
HK$7,783 HKD
$992 USD
View
A
Retailer 6
-
HK$8,938 HKD
€1,085 EUR
View
Retailer 7
-
HK$11,867 HKD
A$2,327 AUD
View
Price last confirmed 12 days ago
A
Retailer 8
-
HK$12,310 HKD
$1,569 USD
View
A
Retailer 9
-
HK$13,526 HKD
$1,724 USD
View
B+
Retailer 10
-
HK$15,268 HKD
$1,946 USD
View
B+
Retailer 11
-
HK$17,598 HKD
$2,243 USD
View
B
Retailer 12
-
HK$24,361 HKD
$3,105 USD
View
B
Retailer 13
-
HK$25,199 HKD
£2,529 GBP
View
B
Retailer 14
-
HK$25,601 HKD
$3,263 USD
View
Most Expensive
B
Brilliant Earth
21304716A · Oct 31
HK$32,795 HKD
$4,180 USD
View
14 more retailers have this diamond
Prices start from HK$4,747 HKDSave up to HK$28,048 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
4.78ct Radiant
HK$4,747 HKD