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Heart|Lab Grown|GIA

4.21ct H VS1 Heart Lab Grown Diamond

ID • H/VS1 • GIA 2476944653

Certificate GIA 2476944653

Diamond specifications and retailer prices

From €2,338 EUR
As of November 3, 2026
Save €3,968 EUR (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €8,143 EUR at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 4.21ct lab-grown heart diamond

This 4.21ct lab-grown heart 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 stated by the retailer rather than the lab and certified by GIA 2476944653. Listed at 11 retailers as of November 3, 2026, with a 170% 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

4.21
Carat
H
Colour
VS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2476944653
Dimensions11.14 × 9.97 × 6.71 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional growth remnants are not shown. This is a man-made diamond produced by CVD (Chemical Vapor Deposition) growth process and has evidence of post-growth treatments to change the color.
Key to symbols
Growth Remnant, Crystal
Top View
11.14 mm9.97 mm4.21 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2476944653
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: 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: Nov 3
Current: €6,306 EUR|Low: €1,960 EUR|High: €8,143 EUR|Avg: €4,068 EUR|+8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
November 5, 2026
Retailer 11€2,250 EUR
Retailer 8€2,331 EUR
Retailer 10€2,338 EUR
Retailer 9€2,476 EUR
Retailer 7€2,759 EUR
Retailer 6€3,572 EUR
Retailer 2€3,638 EUR
Retailer 4€4,976 EUR
Retailer 5€4,992 EUR
Retailer 3€6,102 EUR
Retailer 1€6,306 EUR
Taylor and Hart€8,143 EUR

23 data points across 12 retailers

11 retailers€2,338 EUR to €6,306 EUR

Retailer 1
-
€2,002 EUR
Price last confirmed 39 days ago
Retailer 2
-
€2,331 EUR
View
Price last confirmed 25 days ago
B+
Retailer 3
-
€2,338 EUR
View
B
Retailer 4
-
€2,476 EUR
View
B
Retailer 5
-
€3,572 EUR
View
B
Retailer 6
-
€3,638 EUR
View
B
Retailer 7
-
€4,976 EUR
View
B
Retailer 8
-
€4,992 EUR
View
Retailer 9
-
€6,102 EUR
View
Price last confirmed 25 days ago
B
Retailer 10
-
€6,306 EUR
View
Most Expensive
Taylor and Hart
QHI6M5M · Nov 4
€8,143 EUR
$9,175 USD
View
Price under review
10 more retailers have this diamond
Prices start from €2,338 EURSave up to €3,968 EUR

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+
4.21ct Heart
€2,338 EUR