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Radiant|Lab Grown|IGI

3.11ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG727578351

Certificate IGI LG727578351

Diamond specifications and retailer prices

From $1,471 USD
Save $10,879 USD (88%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $12,350 USD at Brilliant Earth
View at Brilliant Earth

About this 3.11ct lab-grown radiant diamond

This 3.11ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727578351 or 727578351. Listed at 27 retailers, with prices from $1,471 to $12,350 at Brilliant Earth, a $10,879 spread on the same certified stone. 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

3.11
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727578351
Dimensions7.40 × 7.40 × 10.20 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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
7.40 mm7.40 mm3.11 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727578351
Side View
Table 63.0%Crown 41°Girdle: MediumPavilion 34°Culet: NoneDepth 65.7%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $12,350 USD|Low: $1,175 USD|High: $12,360 USD|Avg: $4,410 USD|-0.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 19
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Retailer 22
October 1, 2026
Retailer 13$1,646 USD
Retailer 18$1,875 USD
Retailer 7$1,923 USD
Retailer 14$2,072 USD
Retailer 17$2,086 USD
Retailer 19$2,467 USD
Retailer 5$2,686 USD
Retailer 20$3,097 USD
Retailer 9$3,132 USD
Retailer 22$3,858 USD
Retailer 21$3,891 USD
Retailer 10$4,115 USD
Retailer 11$4,447 USD
Retailer 16$4,933 USD
Retailer 8$4,971 USD
Retailer 15$5,250 USD
Retailer 2$5,581 USD
Retailer 4$5,850 USD
Retailer 6$6,025 USD
Retailer 12$6,437 USD
Retailer 3$6,821 USD
Brilliant Earth$12,350 USD

41 data points across 22 retailers

27 retailers$1,471 USD to $12,350 USD

A
Cheapest Retailer
-
$1,471 USD
A
Retailer 2
-
$1,601 USD
View
A
Retailer 3
-
$1,646 USD
View
A
Retailer 4
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$1,683 USD
View
A
Retailer 5
-
$1,875 USD
View
A
Retailer 6
-
$1,923 USD
View
A
Retailer 7
-
$2,072 USD
View
A
Retailer 8
-
$2,086 USD
HK$16,300 HKD
View
A
Retailer 9
-
$2,421 USD
£1,906 GBP
View
Price last confirmed 21 days ago
A
Retailer 10
-
$2,473 USD
£1,947 GBP
View
A
Retailer 11
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$2,686 USD
€2,558 EUR
View
A
Retailer 12
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$3,097 USD
View
A
Retailer 13
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$3,132 USD
View
A
Retailer 14
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$3,199 USD
View
A
Retailer 15
-
$3,858 USD
A$5,935 AUD
View
A
Retailer 16
-
$3,891 USD
ZAR 62,853 ZAR
View
B+
Retailer 17
-
$4,115 USD
£3,240 GBP
View
B+
Retailer 18
-
$4,447 USD
View
B+
Retailer 19
-
$4,933 USD
£3,884 GBP
View
B+
Retailer 20
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$4,971 USD
View
B+
Retailer 21
-
$5,250 USD
View
B+
Retailer 22
-
$5,581 USD
View
B+
Retailer 23
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$5,850 USD
View
B+
Retailer 24
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$6,025 USD
SGD 8,142 SGD
View
B+
Retailer 25
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$6,568 USD
View
B+
Retailer 26
-
$6,821 USD
A$10,494 AUD
View
Most Expensive
B
Brilliant Earth
15743852A · Sep 29
$12,350 USD
View
26 more retailers have this diamond
Prices start from $1,471 USDSave up to $10,879 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.

A
3.11ct Radiant
$1,471 USD