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Round|Lab Grown|IGI

3.78ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG635451998

Shape and cutting style on the report: Round brilliant

Certificate IGI LG635451998

Diamond specifications and retailer prices

From HK$11,839 HKD
CA$2,096 CAD
As of October 30, 2026
Save HK$3,821 HKD (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$18,041 HKD at Rare Carat · As of July 12, 2026
View at Rare Carat

About this 3.78ct lab-grown round diamond

This 3.78ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG635451998 or 635451998. Listed at 3 retailers as of October 30, 2026, with a 32% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.78
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635451998
Dimensions10.15 × 10.08 × 6.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.15 mm10.08 mm3.78 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635451998
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$18,041 HKD|Low: HK$2,299 HKD|High: HK$27,695 HKD|Avg: HK$11,648 HKD|-3.6%
Rare Carat
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
August 12, 2026
Retailer 3HK$2,464 HKD
Retailer 2HK$4,849 HKD
Retailer 8HK$5,021 HKD
Retailer 6HK$5,948 HKD
Retailer 4HK$6,465 HKD
Retailer 10HK$7,171 HKD
Retailer 13HK$7,783 HKD
Retailer 12HK$9,854 HKD
Retailer 11HK$10,698 HKD
Retailer 5HK$11,839 HKD
Retailer 9HK$14,902 HKD
Retailer 14HK$15,660 HKD
Rare CaratHK$18,041 HKD
Retailer 7HK$27,695 HKD

63 data points across 14 retailers

3 retailersHK$11,839 HKD to HK$15,660 HKD

B+
Cheapest Retailer
-
HK$11,839 HKD
CA$2,096 CAD
B
Retailer 2
-
HK$15,660 HKD
$1,996 USD
View
Most Expensive
Rare Carat
635451998 · Jul 12
HK$18,041 HKD
$2,300 USD
View
Price last confirmed 111 days ago
2 more retailers have this diamond
Prices start from HK$11,839 HKDSave up to HK$3,821 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.

B+
3.78ct Round
HK$11,839 HKD