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 $1,704 USD
As of October 31, 2026
Save $4,919 USD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,073 USD at Taylor and Hart · As of October 30, 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $6,623 USD|Low: $1,446 USD|High: $12,390 USD|Avg: $3,831 USD|+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$1,704 USD
Retailer 11$1,802 USD
Retailer 7$1,913 USD
Retailer 15$1,960 USD
Retailer 2$2,018 USD
Retailer 12$2,090 USD
Retailer 10$2,260 USD
Retailer 3$2,395 USD
Retailer 8$2,935 USD
Retailer 14$3,171 USD
Retailer 13$3,277 USD
Retailer 9$3,515 USD
Retailer 4$4,374 USD
Retailer 1$6,623 USD
Taylor and Hart$8,073 USD
Retailer 5$12,390 USD

21 data points across 16 retailers

16 retailers$1,704 USD to $6,623 USD

B+
Cheapest Retailer
-
$1,704 USD
B+
Retailer 2
-
$1,802 USD
View
B
Retailer 3
-
$1,960 USD
View
B
Retailer 4
-
$2,018 USD
View
Final sale: no returns
Retailer 5
-
$2,090 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
$2,090 USD
View
B
Retailer 7
-
$2,260 USD
View
B
Retailer 8
-
$2,395 USD
View
Retailer 9
-
$2,935 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$3,171 USD
View
B
Retailer 11
-
$3,277 USD
View
B
Retailer 12
-
$3,515 USD
View
B
Retailer 13
-
$4,374 USD
£3,444 GBP
View
B
Retailer 14
-
$6,623 USD
£5,215 GBP
View
Most Expensive
Taylor and Hart
3AOIBQS · Oct 30
$8,073 USD
View
Price under review
14 more retailers have this diamond
Prices start from $1,704 USDSave up to $4,919 USD

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
$1,704 USD