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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 $10,083 USD
As of October 29, 2026
Save $38,193 USD (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $48,276 USD 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 $10,083 to $48,276, a $38,193 spread on the same certified stone. Michael Trio lists it at $48,276. 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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $48,276 USD|Low: $10,083 USD|High: $48,276 USD|Avg: $18,332 USD
Michael Trio
Retailer 2
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Retailer 21
October 31, 2026
Retailer 4$10,083 USD
Retailer 3$10,486 USD
Retailer 19$10,790 USD
Retailer 6$11,426 USD
Retailer 7$11,696 USD
Retailer 5$12,099 USD
Retailer 9$12,484 USD
Retailer 20$12,485 USD
Retailer 8$12,603 USD
Retailer 11$12,851 USD
Retailer 17$13,838 USD
Retailer 13$15,304 USD
Retailer 15$16,980 USD
Retailer 18$19,924 USD
Retailer 14$21,392 USD
Retailer 2$21,783 USD
Retailer 21$24,412 USD
Retailer 16$24,982 USD
Retailer 10$25,375 USD
Retailer 12$32,186 USD
Michael Trio$48,276 USD

29 data points across 21 retailers

24 retailers$10,083 USD to $48,276 USD

A
Cheapest Retailer
-
$10,083 USD
A
Retailer 2
-
$10,243 USD
View
A
Retailer 3
-
$10,486 USD
View
A
Retailer 4
-
$10,790 USD
View
Retailer 5
-
$11,426 USD
£8,997 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$11,696 USD
View
A
Retailer 7
-
$12,099 USD
View
A
Retailer 8
-
$12,484 USD
View
A
Retailer 9
-
$12,485 USD
View
A
Retailer 10
-
$12,603 USD
View
A
Retailer 11
-
$12,851 USD
View
A
Retailer 12
-
$13,838 USD
View
Final sale: no returns
A
Retailer 13
-
$15,304 USD
£12,051 GBP
View
A
Retailer 14
-
$16,980 USD
View
B+
Retailer 15
-
$19,924 USD
£15,688 GBP
View
B+
Retailer 16
-
$21,392 USD
View
B+
Retailer 17
-
$21,783 USD
€20,746 EUR
View
Retailer 18
-
$24,412 USD
A$37,557 AUD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$24,982 USD
ZAR 403,580 ZAR
View
Retailer 20
-
$25,375 USD
A$39,039 AUD
View
Price last confirmed 22 days ago
B
Retailer 21
-
$32,186 USD
View
B
Retailer 22
-
$38,383 USD
View
B
Retailer 23
-
$45,170 USD
View
Most Expensive
B
Michael Trio
4751405420 · Oct 31
$48,276 USD
SGD 65,238 SGD
View
23 more retailers have this diamond
Prices start from $10,083 USDSave up to $38,193 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.

A
6.31ct Round
$10,083 USD