Oval|Lab Grown|GIA

0.40ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • GIA 6552109820

Certificate GIA 6552109820

Diamond specifications and retailer prices

From €299 EUR
₹31,992 INR
As of November 2, 2026
Save €522 EUR (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,612 EUR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.4ct lab-grown oval diamond

This 0.4ct lab-grown oval sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552109820. Listed at 13 retailers as of November 2, 2026, with a 174% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6552109820
Dimensions5.62 × 4.08 × 2.65 mm
L/W Ratio1.38
Top View
5.62 mm4.08 mm0.40 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552109820
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.8%

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 2
Current: €938 EUR|Low: €299 EUR|High: €1,865 EUR|Avg: €741 EUR|-49.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4€299 EUR
Retailer 2€389 EUR
Retailer 10€427 EUR
Retailer 11€502 EUR
Retailer 6€505 EUR
Retailer 7€523 EUR
Retailer 8€588 EUR
Retailer 9€614 EUR
Retailer 3€786 EUR
Retailer 5€822 EUR
Retailer 1€938 EUR

39 data points across 11 retailers

13 retailers€299 EUR to €822 EUR

B+
Cheapest Retailer
-
€299 EUR
₹31,992 INR
Retailer 2
-
€389 EUR
$436 USD
View
Price last confirmed 31 days ago
B
Retailer 3
-
€427 EUR
$479 USD
View
Retailer 4
-
€453 EUR
$508 USD
View
Price last confirmed 38 days ago
Retailer 5
-
€502 EUR
$563 USD
View
Price last confirmed 30 days ago
B
Retailer 6
-
€505 EUR
£446 GBP
View
B
Retailer 7
-
€523 EUR
$586 USD
View
B
Retailer 8
-
€588 EUR
$660 USD
View
B
Retailer 9
-
€614 EUR
View
B
Retailer 10
-
€786 EUR
$882 USD
View
B
Retailer 11
-
€822 EUR
£726 GBP
View
Most Expensive
NZ Jewellers
3597088e-8912-4307-bae5-972fde6415a5 · Sep 30
€1,612 EUR
$1,808 USD
View
Price under review
11 more retailers have this diamond
Prices start from €299 EURSave up to €522 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 Oval
€299 EUR