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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 €2,358 EUR
$2,634 USD
As of October 31, 2026
Save €4,020 EUR (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €8,212 EUR at Taylor and Hart · As of October 31, 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 12 retailers as of October 31, 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
Color
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: Oct 31
Current: €6,377 EUR|Low: €1,976 EUR|High: €8,212 EUR|Avg: €4,093 EUR|+9.0%
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 1, 2026
Retailer 11€2,269 EUR
Retailer 8€2,351 EUR
Retailer 10€2,358 EUR
Retailer 9€2,497 EUR
Retailer 7€2,783 EUR
Retailer 6€3,603 EUR
Retailer 2€3,669 EUR
Retailer 5€5,004 EUR
Retailer 4€5,036 EUR
Retailer 3€6,154 EUR
Retailer 1€6,377 EUR
Taylor and Hart€8,212 EUR

22 data points across 12 retailers

12 retailers€2,358 EUR to €6,377 EUR

Retailer 1
-
€2,019 EUR
$2,256 USD
Price last confirmed 35 days ago
Retailer 2
-
€2,351 EUR
$2,626 USD
View
Price last confirmed 21 days ago
B+
Retailer 3
-
€2,358 EUR
$2,634 USD
View
B
Retailer 4
-
€2,497 EUR
$2,790 USD
View
Retailer 5
-
€2,783 EUR
£2,449 GBP
View
Price last confirmed 15 days ago
B
Retailer 6
-
€3,603 EUR
$4,025 USD
View
B
Retailer 7
-
€3,669 EUR
$4,099 USD
View
B
Retailer 8
-
€5,004 EUR
ZAR 90,311 ZAR
View
B
Retailer 9
-
€5,036 EUR
A$8,655 AUD
View
Retailer 10
-
€6,154 EUR
$6,875 USD
View
Price last confirmed 21 days ago
B
Retailer 11
-
€6,377 EUR
£5,610 GBP
View
Most Expensive
Taylor and Hart
QHI6M5M · Oct 31
€8,212 EUR
$9,175 USD
View
Price under review
11 more retailers have this diamond
Prices start from €2,358 EURSave up to €4,020 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
€2,358 EUR