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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 $2,178 SGD
$1,704 USD
As of October 31, 2026
Save $6,289 SGD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,321 SGD 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
Colour
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: $8,467 SGD|Low: $1,849 SGD|High: $15,839 SGD|Avg: $4,897 SGD|+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$2,178 SGD
Retailer 11$2,304 SGD
Retailer 7$2,445 SGD
Retailer 15$2,506 SGD
Retailer 2$2,580 SGD
Retailer 12$2,672 SGD
Retailer 10$2,889 SGD
Retailer 3$3,062 SGD
Retailer 8$3,752 SGD
Retailer 14$4,054 SGD
Retailer 13$4,189 SGD
Retailer 9$4,494 SGD
Retailer 4$5,592 SGD
Retailer 1$8,467 SGD
Taylor and Hart$10,321 SGD
Retailer 5$15,839 SGD

21 data points across 16 retailers

16 retailers$2,178 SGD to $8,467 SGD

B+
Cheapest Retailer
-
$2,178 SGD
$1,704 USD
B+
Retailer 2
-
$2,304 SGD
$1,802 USD
View
B
Retailer 3
-
$2,506 SGD
$1,960 USD
View
B
Retailer 4
-
$2,580 SGD
$2,018 USD
View
Final sale: no returns
Retailer 5
-
$2,672 SGD
$2,090 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$2,672 SGD
$2,090 USD
View
B
Retailer 7
-
$2,889 SGD
$2,260 USD
View
B
Retailer 8
-
$3,062 SGD
$2,395 USD
View
Retailer 9
-
$3,752 SGD
$2,935 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$4,054 SGD
$3,171 USD
View
B
Retailer 11
-
$4,189 SGD
$3,277 USD
View
B
Retailer 12
-
$4,494 SGD
$3,515 USD
View
B
Retailer 13
-
$5,592 SGD
£3,444 GBP
View
B
Retailer 14
-
$8,467 SGD
£5,215 GBP
View
Most Expensive
Taylor and Hart
3AOIBQS · Oct 31
$10,321 SGD
$8,073 USD
View
Price under review
14 more retailers have this diamond
Prices start from $2,178 SGDSave up to $6,289 SGD

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
$2,178 SGD