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Round|Lab Grown|GIA

0.40ct I VVS1 Round Lab Grown Diamond

VG • I/VVS1 • GIA 6251609794

Certificate GIA 6251609794

Diamond specifications and retailer prices

From €455 EUR
£401 GBP
As of November 1, 2026
Save €401 EUR (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €856 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by GIA 6251609794. Listed at 3 retailers as of October 26, 2026, with prices from €455 to €856, a €401 spread on the same certified stone. MOH London lists it at €856. 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

0.40
Carat
I
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6251609794
Dimensions4.65 × 4.63 × 2.93 mm
L/W Ratio1.00
Top View
4.65 mm4.63 mm0.40 ctI / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6251609794
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 63.1%

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: Nov 1
Current: €856 EUR|Low: €437 EUR|High: €944 EUR|Avg: €632 EUR|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2€455 EUR
Retailer 3€573 EUR
Retailer 4€637 EUR
MOH London€856 EUR

41 data points across 4 retailers

3 retailers€455 EUR to €856 EUR

B+
Cheapest Retailer
-
€455 EUR
£401 GBP
B
Retailer 2
-
€573 EUR
View
Most Expensive
B
MOH London
F15511939 · Oct 26
€856 EUR
£753 GBP
View
2 more retailers have this diamond
Prices start from €455 EURSave up to €401 EUR

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+
0.40ct Round
€455 EUR