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Round|Lab Grown|IGI

6.31ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG581318516

Shape and cutting style on the report: Round brilliant

Certificate IGI LG581318516

Diamond specifications and retailer prices

From €849 EUR
$948 USD
As of October 29, 2026
Save €3,047 EUR (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,895 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 6.31ct lab-grown round diamond

This 6.31ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG581318516 or 581318516. Listed at 16 retailers as of October 29, 2026, with prices from €849 to €3,895, a €3,047 spread on the same certified stone. Blue Nile lists it at €3,895. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.31
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581318516
Dimensions11.83 × 11.74 × 7.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.83 mm11.74 mm6.31 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581318516
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €3,895 EUR|Low: €566 EUR|High: €4,001 EUR|Avg: €1,898 EUR|+0.0%
Blue Nile
Retailer 2
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Retailer 5
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
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Retailer 18
October 31, 2026
Retailer 9€792 EUR
Retailer 3€849 EUR
Retailer 13€923 EUR
Retailer 15€985 EUR
Retailer 17€985 EUR
Retailer 11€1,141 EUR
Retailer 4€1,410 EUR
Retailer 2€1,411 EUR
Retailer 16€1,472 EUR
Retailer 6€1,574 EUR
Retailer 5€2,032 EUR
Retailer 14€2,121 EUR
Retailer 18€2,768 EUR
Retailer 12€3,343 EUR
Retailer 7€3,425 EUR
Retailer 10€3,651 EUR
Retailer 8€3,885 EUR
Blue Nile€3,895 EUR

33 data points across 18 retailers

16 retailers€849 EUR to €3,895 EUR

A
Cheapest Retailer
-
€849 EUR
$948 USD
A
Retailer 2
-
€923 EUR
$1,031 USD
View
Retailer 3
-
€985 EUR
$1,100 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
€985 EUR
$1,100 USD
View
A
Retailer 5
-
€1,141 EUR
$1,275 USD
View
B+
Retailer 6
-
€1,410 EUR
$1,575 USD
View
A
Retailer 7
-
€1,411 EUR
View
Retailer 8
-
€1,472 EUR
£1,295 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
€1,574 EUR
$1,759 USD
View
B+
Retailer 10
-
€2,032 EUR
$2,270 USD
View
B+
Retailer 11
-
€2,121 EUR
$2,370 USD
View
B
Retailer 12
-
€2,768 EUR
$3,092 USD
View
B
Retailer 13
-
€3,343 EUR
£2,941 GBP
View
Retailer 14
-
€3,425 EUR
$3,827 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
€3,885 EUR
$4,340 USD
View
Most Expensive
B
Blue Nile
25245800 · Oct 31
€3,895 EUR
$4,352 USD
View
15 more retailers have this diamond
Prices start from €849 EURSave up to €3,047 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.

A
6.31ct Round
€849 EUR