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Round|Lab Grown|GIA

0.30ct H VS1 Round Lab Grown Diamond

GD • H/VS1 • GIA 6312717350

Certificate GIA 6312717350

Diamond specifications and retailer prices

From $391 USD
£308 GBP
As of October 29, 2026
Save $190 USD (33%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $582 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by GIA 6312717350. Listed at 3 retailers as of October 29, 2026, with prices from $391 to $582, a $190 spread on the same certified stone. MOH London lists it at $582. 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

0.30
Carat
H
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6312717350
Dimensions4.35 × 4.28 × 2.57 mm
L/W Ratio1.02
Top View
4.35 mm4.28 mm0.30 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6312717350
Side View
Table 66.0%CrownGirdlePavilionCulet: NoneDepth 59.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $582 USD|Low: $318 USD|High: $631 USD|Avg: $480 USD|-6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 2$391 USD
Retailer 3$408 USD
Retailer 4$506 USD
MOH London$582 USD

42 data points across 4 retailers

3 retailers$391 USD to $582 USD

B
Cheapest Retailer
-
$391 USD
£308 GBP
B
Retailer 2
-
$408 USD
€389 EUR
View
Most Expensive
B
MOH London
222DC6413 · Oct 29
$582 USD
£458 GBP
View
2 more retailers have this diamond
Prices start from $391 USDSave up to $190 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
0.30ct Round
$391 USD