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Radiant|Lab Grown|IGI

3.42ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG704585687

Certificate IGI LG704585687

Diamond specifications and retailer prices

From $1,420 USD
Save $6,990 USD (83%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $8,410 USD at Brilliant Earth
View at Brilliant Earth

About this 3.42ct lab-grown radiant diamond

This 3.42ct 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 LG704585687 or 704585687. Listed at 28 retailers, with prices from $1,420 to $8,410 at Brilliant Earth, a $6,990 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

3.42
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704585687
Dimensions10.68 × 7.56 × 4.88 mm
L/W Ratio1.41
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
10.68 mm7.56 mm3.42 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704585687
Side View
Table 66.0%Crown 43.4°Girdle: MediumPavilion 33.9°Culet: NoneDepth 64.6%

Caratlytics Score

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

Price History

Last verified: Sep 30
Current: $8,410 USD|Low: $1,169 USD|High: $8,420 USD|Avg: $3,792 USD|-0.1%
Brilliant Earth
Retailer 2
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Retailer 26
October 1, 2026
Retailer 24$1,420 USD
Retailer 6$1,545 USD
Retailer 13$1,589 USD
Retailer 14$1,624 USD
Retailer 8$1,820 USD
Retailer 9$1,880 USD
Retailer 20$1,978 USD
Retailer 15$2,000 USD
Retailer 23$2,010 USD
Retailer 25$2,380 USD
Retailer 10$2,591 USD
Retailer 26$2,989 USD
Retailer 22$3,087 USD
Retailer 12$3,663 USD
Retailer 5$3,723 USD
Retailer 4$3,754 USD
Retailer 11$3,978 USD
Retailer 19$4,289 USD
Retailer 3$4,760 USD
Retailer 18$4,796 USD
Retailer 16$5,086 USD
Retailer 2$5,611 USD
Retailer 17$5,816 USD
Retailer 7$6,207 USD
Retailer 21$7,608 USD
Brilliant Earth$8,410 USD

32 data points across 26 retailers

28 retailers$1,420 USD to $8,410 USD

A
Cheapest Retailer
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$1,420 USD
A
Retailer 2
-
$1,545 USD
View
A
Retailer 3
-
$1,589 USD
View
A
Retailer 4
-
$1,624 USD
View
A
Retailer 5
-
$1,820 USD
View
A
Retailer 6
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$1,880 USD
View
A
Retailer 7
-
$1,978 USD
£1,557 GBP
View
A
Retailer 8
-
$2,000 USD
View
A
Retailer 9
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$2,010 USD
HK$15,700 HKD
View
A
Retailer 10
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$2,385 USD
£1,878 GBP
View
A
Retailer 11
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$2,409 USD
£1,897 GBP
View
Price last confirmed 21 days ago
A
Retailer 12
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$2,591 USD
€2,468 EUR
View
A
Retailer 13
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$2,989 USD
View
A
Retailer 14
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$3,087 USD
View
A
Retailer 15
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$3,663 USD
View
A
Retailer 16
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$3,723 USD
A$5,728 AUD
View
A
Retailer 17
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$3,754 USD
ZAR 60,654 ZAR
View
A
Retailer 18
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$3,978 USD
£3,132 GBP
View
A
Retailer 19
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$4,289 USD
View
B+
Retailer 20
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$4,760 USD
£3,748 GBP
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B+
Retailer 21
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$4,796 USD
View
B+
Retailer 22
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$5,086 USD
View
B+
Retailer 23
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$5,563 USD
View
Price last confirmed 72 days ago
B+
Retailer 24
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$5,611 USD
View
B+
Retailer 25
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$5,816 USD
SGD 7,860 SGD
View
B+
Retailer 26
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$6,334 USD
View
B
Retailer 27
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$7,608 USD
A$11,704 AUD
View
Most Expensive
B
Brilliant Earth
15240398A · Sep 29
$8,410 USD
View
27 more retailers have this diamond
Prices start from $1,420 USDSave up to $6,990 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
3.42ct Radiant
$1,420 USD