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Radiant|Lab Grown|IGI

4.03ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG680519845

Certificate IGI LG680519845

Diamond specifications and retailer prices

From $3,649 USD
Save $32,977 USD (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $36,626 USD at Diamond Quarter
View at Diamond Quarter

About this 4.03ct lab-grown radiant diamond

This 4.03ct 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 LG680519845 or 680519845. Listed at 26 retailers, with prices from $3,649 to $36,626 at Diamond Quarter, a $32,977 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

4.03
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680519845
Dimensions11.44 × 7.94 × 5.15 mm
L/W Ratio1.44
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
11.44 mm7.94 mm4.03 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680519845
Side View
Table 63.0%Crown 39°Girdle: MediumPavilion 33.3°Culet: NoneDepth 64.9%

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: $3,928 USD|Low: $2,918 USD|High: $26,068 USD|Avg: $10,296 USD|-0.2%
Retailer 1
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Retailer 3
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Retailer 22
October 1, 2026
Retailer 1$3,928 USD
Retailer 4$4,087 USD
Retailer 3$4,185 USD
Retailer 9$4,190 USD
Retailer 16$4,233 USD
Retailer 7$4,385 USD
Retailer 14$5,957 USD
Retailer 17$6,299 USD
Retailer 5$6,553 USD
Retailer 12$6,562 USD
Retailer 21$6,905 USD
Retailer 18$9,763 USD
Retailer 20$10,128 USD
Retailer 19$10,182 USD
Retailer 8$11,617 USD
Retailer 11$11,652 USD
Retailer 6$13,661 USD
Retailer 22$15,918 USD
Retailer 15$16,584 USD
Retailer 10$19,880 USD
Retailer 13$25,100 USD
Retailer 2$26,068 USD

39 data points across 22 retailers

26 retailers$3,649 USD to $36,626 USD

A
Cheapest Retailer
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$3,649 USD
A
Retailer 2
-
$3,928 USD
£3,093 GBP
View
A
Retailer 3
-
$3,970 USD
View
A
Retailer 4
-
$4,087 USD
View
A
Retailer 5
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$4,174 USD
View
A
Retailer 6
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$4,185 USD
View
A
Retailer 7
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$4,190 USD
View
A
Retailer 8
-
$4,233 USD
View
A
Retailer 9
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$4,385 USD
View
A
Retailer 10
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$5,957 USD
View
A
Retailer 11
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$6,313 USD
£4,971 GBP
View
A
Retailer 12
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$6,553 USD
£5,160 GBP
View
A
Retailer 13
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$6,562 USD
View
A
Retailer 14
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$6,905 USD
View
B+
Retailer 15
-
$9,763 USD
ZAR 157,718 ZAR
View
B+
Retailer 16
-
$10,128 USD
£7,975 GBP
View
B+
Retailer 17
-
$10,182 USD
A$15,664 AUD
View
B+
Retailer 18
-
$11,617 USD
View
B+
Retailer 19
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$11,652 USD
View
B
Retailer 20
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$13,661 USD
View
B
Retailer 21
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$15,918 USD
View
B
Retailer 22
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$16,584 USD
View
B
Retailer 23
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$19,880 USD
View
B
Retailer 24
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$25,100 USD
View
B
Retailer 25
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$26,068 USD
View
Most Expensive
B
Diamond Quarter
4.03IFDLG45E620N · Oct 1
$36,626 USD
View
25 more retailers have this diamond
Prices start from $3,649 USDSave up to $32,977 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
4.03ct Radiant
$3,649 USD