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Round|Lab Grown|IGI

6.31ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG634473125

Shape and cutting style on the report: Round brilliant

Certificate IGI LG634473125

Diamond specifications and retailer prices

From €9,025 EUR
$10,083 USD
As of October 29, 2026
Save €34,186 EUR (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €43,211 EUR at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 6.31ct lab-grown round diamond

This 6.31ct lab-grown round sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG634473125 or 634473125. Listed at 24 retailers as of October 29, 2026, with prices from €9,025 to €43,211, a €34,186 spread on the same certified stone. Michael Trio lists it at €43,211. 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
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634473125
Dimensions11.83 × 11.80 × 7.34 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.83 mm11.80 mm6.31 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634473125
Side View
Table 56.0%Crown 35.4°Girdle: MediumPavilion 40.9°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: €43,211 EUR|Low: €9,025 EUR|High: €43,211 EUR|Avg: €16,221 EUR
Michael Trio
Retailer 2
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Retailer 19
Retailer 20
November 1, 2026
Retailer 5€9,025 EUR
Retailer 4€9,386 EUR
Retailer 19€9,658 EUR
Retailer 7€10,228 EUR
Retailer 8€10,469 EUR
Retailer 6€10,830 EUR
Retailer 10€11,174 EUR
Retailer 20€11,175 EUR
Retailer 9€11,281 EUR
Retailer 11€11,503 EUR
Retailer 17€12,386 EUR
Retailer 13€13,699 EUR
Retailer 15€15,199 EUR
Retailer 18€17,834 EUR
Retailer 14€19,498 EUR
Retailer 3€21,851 EUR
Retailer 16€22,361 EUR
Retailer 2€22,438 EUR
Retailer 12€28,810 EUR
Michael Trio€43,211 EUR

29 data points across 20 retailers

24 retailers€9,025 EUR to €43,211 EUR

A
Cheapest Retailer
-
€9,025 EUR
$10,083 USD
A
Retailer 2
-
€9,168 EUR
$10,243 USD
View
A
Retailer 3
-
€9,386 EUR
$10,486 USD
View
A
Retailer 4
-
€9,658 EUR
$10,790 USD
View
Retailer 5
-
€10,228 EUR
£8,997 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
€10,469 EUR
$11,696 USD
View
A
Retailer 7
-
€10,830 EUR
$12,099 USD
View
A
Retailer 8
-
€11,174 EUR
$12,484 USD
View
A
Retailer 9
-
€11,175 EUR
$12,485 USD
View
A
Retailer 10
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€11,281 EUR
$12,603 USD
View
A
Retailer 11
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€11,503 EUR
$12,851 USD
View
A
Retailer 12
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€12,386 EUR
$13,838 USD
View
Final sale: no returns
A
Retailer 13
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€13,699 EUR
£12,051 GBP
View
A
Retailer 14
-
€15,199 EUR
$16,980 USD
View
B+
Retailer 15
-
€17,834 EUR
£15,688 GBP
View
B+
Retailer 16
-
€19,148 EUR
$21,392 USD
View
B+
Retailer 17
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€19,498 EUR
View
Retailer 18
-
€21,851 EUR
A$37,557 AUD
View
Price last confirmed 9 days ago
B+
Retailer 19
-
€22,361 EUR
ZAR 403,580 ZAR
View
B+
Retailer 20
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€22,438 EUR
A$38,566 AUD
View
B
Retailer 21
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€28,810 EUR
$32,186 USD
View
B
Retailer 22
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€34,356 EUR
$38,383 USD
View
B
Retailer 23
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€40,431 EUR
$45,170 USD
View
Most Expensive
B
Michael Trio
4751405420 · Oct 31
€43,211 EUR
SGD 65,238 SGD
View
23 more retailers have this diamond
Prices start from €9,025 EURSave up to €34,186 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
€9,025 EUR