Oval|Lab Grown|GIA

4.21ct H VS1 Oval Lab Grown Diamond

GD • H/VS1 • GIA 2457057723

Certificate GIA 2457057723

Diamond specifications and retailer prices

From $2,380 CAD
$1,704 USD
As of October 31, 2026
Save $6,871 CAD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,277 CAD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.21ct lab-grown oval diamond

This 4.21ct lab-grown oval sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2457057723. Listed at 16 retailers as of October 29, 2026, with a 289% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.21
Carat
H
Color
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2457057723
Dimensions12.90 × 9.22 × 5.74 mm
L/W Ratio1.40
Top View
12.90 mm9.22 mm4.21 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2457057723
Side View
Table 62.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.0%

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: $9,252 CAD|Low: $2,020 CAD|High: $17,308 CAD|Avg: $5,351 CAD|+0.5%
Retailer 1
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
Taylor and Hart
October 29, 2026
Retailer 6$2,380 CAD
Retailer 11$2,517 CAD
Retailer 7$2,672 CAD
Retailer 15$2,738 CAD
Retailer 2$2,819 CAD
Retailer 12$2,920 CAD
Retailer 10$3,157 CAD
Retailer 3$3,346 CAD
Retailer 8$4,100 CAD
Retailer 14$4,430 CAD
Retailer 13$4,578 CAD
Retailer 9$4,910 CAD
Retailer 4$6,110 CAD
Retailer 1$9,252 CAD
Taylor and Hart$11,277 CAD
Retailer 5$17,308 CAD

21 data points across 16 retailers

16 retailers$2,380 CAD to $9,252 CAD

B+
Cheapest Retailer
-
$2,380 CAD
$1,704 USD
B+
Retailer 2
-
$2,517 CAD
$1,802 USD
View
B
Retailer 3
-
$2,738 CAD
$1,960 USD
View
B
Retailer 4
-
$2,819 CAD
$2,018 USD
View
Final sale: no returns
Retailer 5
-
$2,920 CAD
$2,090 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$2,920 CAD
$2,090 USD
View
B
Retailer 7
-
$3,157 CAD
$2,260 USD
View
B
Retailer 8
-
$3,346 CAD
$2,395 USD
View
Retailer 9
-
$4,100 CAD
$2,935 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$4,430 CAD
$3,171 USD
View
B
Retailer 11
-
$4,578 CAD
$3,277 USD
View
B
Retailer 12
-
$4,910 CAD
$3,515 USD
View
B
Retailer 13
-
$6,110 CAD
£3,444 GBP
View
B
Retailer 14
-
$9,252 CAD
£5,215 GBP
View
Most Expensive
Taylor and Hart
3AOIBQS · Oct 31
$11,277 CAD
$8,073 USD
View
Price under review
14 more retailers have this diamond
Prices start from $2,380 CADSave up to $6,871 CAD

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 Oval
$2,380 CAD