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 HK$13,369 HKD
$1,704 USD
As of October 31, 2026
Save HK$38,593 HKD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$63,340 HKD 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: HK$51,962 HKD|Low: HK$11,345 HKD|High: HK$97,208 HKD|Avg: HK$30,054 HKD|+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 6HK$13,369 HKD
Retailer 11HK$14,138 HKD
Retailer 7HK$15,006 HKD
Retailer 15HK$15,378 HKD
Retailer 2HK$15,833 HKD
Retailer 12HK$16,398 HKD
Retailer 10HK$17,731 HKD
Retailer 3HK$18,790 HKD
Retailer 8HK$23,027 HKD
Retailer 14HK$24,879 HKD
Retailer 13HK$25,710 HKD
Retailer 9HK$27,578 HKD
Retailer 4HK$34,316 HKD
Retailer 1HK$51,962 HKD
Taylor and HartHK$63,340 HKD
Retailer 5HK$97,208 HKD

21 data points across 16 retailers

16 retailersHK$13,369 HKD to HK$51,962 HKD

B+
Cheapest Retailer
-
HK$13,369 HKD
$1,704 USD
B+
Retailer 2
-
HK$14,138 HKD
$1,802 USD
View
B
Retailer 3
-
HK$15,378 HKD
$1,960 USD
View
B
Retailer 4
-
HK$15,833 HKD
$2,018 USD
View
Final sale: no returns
Retailer 5
-
HK$16,398 HKD
$2,090 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
HK$16,398 HKD
$2,090 USD
View
B
Retailer 7
-
HK$17,731 HKD
$2,260 USD
View
B
Retailer 8
-
HK$18,790 HKD
$2,395 USD
View
Retailer 9
-
HK$23,027 HKD
$2,935 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
HK$24,879 HKD
$3,171 USD
View
B
Retailer 11
-
HK$25,710 HKD
$3,277 USD
View
B
Retailer 12
-
HK$27,578 HKD
$3,515 USD
View
B
Retailer 13
-
HK$34,316 HKD
£3,444 GBP
View
B
Retailer 14
-
HK$51,962 HKD
£5,215 GBP
View
Most Expensive
Taylor and Hart
3AOIBQS · Oct 31
HK$63,340 HKD
$8,073 USD
View
Price under review
14 more retailers have this diamond
Prices start from HK$13,369 HKDSave up to HK$38,593 HKD

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
HK$13,369 HKD