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Round|Lab Grown|IGI

6.15ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG635428643

Shape and cutting style on the report: Round brilliant

Certificate IGI LG635428643

Diamond specifications and retailer prices

From $11,409 USD
As of October 29, 2026
Save $43,178 USD (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $54,587 USD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 6.15ct lab-grown round diamond

This 6.15ct lab-grown round sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG635428643 or 635428643. Listed at 24 retailers as of October 29, 2026, with prices from $11,409 to $54,587, a $43,178 spread on the same certified stone. Michael Trio lists it at $54,587. 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

6.15
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635428643
Dimensions11.84 × 11.78 × 7.18 mm
L/W Ratio1.01
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
11.84 mm11.78 mm6.15 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635428643
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.8%

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: $54,587 USD|Low: $11,409 USD|High: $54,587 USD|Avg: $22,945 USD
Michael Trio
Retailer 2
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Retailer 24
October 31, 2026
Retailer 3$11,409 USD
Retailer 16$11,521 USD
Retailer 5$11,645 USD
Retailer 24$11,866 USD
Retailer 6$12,842 USD
Retailer 7$13,235 USD
Retailer 4$13,691 USD
Retailer 8$14,042 USD
Retailer 23$14,045 USD
Retailer 9$14,117 USD
Retailer 11$14,723 USD
Retailer 21$15,683 USD
Retailer 13$17,009 USD
Retailer 20$21,496 USD
Retailer 14$24,206 USD
Retailer 2$24,688 USD
Retailer 18$24,820 USD
Retailer 22$27,564 USD
Retailer 19$28,269 USD
Retailer 12$36,420 USD
Retailer 10$36,572 USD
Retailer 17$41,956 USD
Retailer 15$51,110 USD
Michael Trio$54,587 USD

30 data points across 24 retailers

24 retailers$11,409 USD to $54,587 USD

A
Cheapest Retailer
-
$11,409 USD
A
Retailer 2
-
$11,521 USD
View
Retailer 3
-
$11,645 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$11,866 USD
View
Retailer 5
-
$12,842 USD
£10,112 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
$13,235 USD
View
A
Retailer 7
-
$13,691 USD
View
A
Retailer 8
-
$14,042 USD
View
A
Retailer 9
-
$14,045 USD
View
A
Retailer 10
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$14,117 USD
View
A
Retailer 11
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$14,723 USD
View
A
Retailer 12
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$15,683 USD
View
Final sale: no returns
A
Retailer 13
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$17,009 USD
£13,393 GBP
View
B+
Retailer 14
-
$21,496 USD
£16,926 GBP
View
B+
Retailer 15
-
$24,206 USD
View
B+
Retailer 16
-
$24,688 USD
€23,512 EUR
View
B+
Retailer 17
-
$24,820 USD
View
Retailer 18
-
$27,564 USD
A$42,406 AUD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$28,269 USD
ZAR 456,682 ZAR
View
B
Retailer 20
-
$36,420 USD
View
Retailer 21
-
$36,572 USD
A$56,265 AUD
View
Price last confirmed 22 days ago
B
Retailer 22
-
$41,956 USD
View
B
Retailer 23
-
$51,110 USD
View
Most Expensive
B
Michael Trio
5317607170 · Oct 31
$54,587 USD
SGD 73,766 SGD
View
23 more retailers have this diamond
Prices start from $11,409 USDSave up to $43,178 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
6.15ct Round
$11,409 USD