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Radiant|Lab Grown|IGI

1.58ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG728538663

Certificate IGI LG728538663

Diamond specifications and retailer prices

From $322 USD
Save $3,198 USD (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,520 USD at Brilliant Earth
View at Brilliant Earth

About this 1.58ct lab-grown radiant diamond

This 1.58ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728538663 or 728538663. Listed at 27 retailers, with prices from $322 to $3,520 at Brilliant Earth, a $3,198 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728538663
Dimensions8.11 × 5.77 × 3.94 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
8.11 mm5.77 mm1.58 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728538663
Side View
Table 63.0%Crown 43.1°Girdle: MediumPavilion 34°Culet: NoneDepth 68.3%

Caratlytics Score

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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: $3,520 USD|Low: $256 USD|High: $3,520 USD|Avg: $1,191 USD
Brilliant Earth
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Retailer 26
October 1, 2026
Retailer 21$322 USD
Retailer 4$373 USD
Retailer 6$389 USD
Retailer 8$394 USD
Retailer 11$467 USD
Retailer 13$508 USD
Retailer 22$555 USD
Retailer 19$614 USD
Retailer 10$659 USD
Retailer 7$698 USD
Retailer 5$741 USD
Retailer 23$783 USD
Retailer 14$861 USD
Retailer 16$1,008 USD
Retailer 3$1,022 USD
Retailer 24$1,073 USD
Retailer 20$1,416 USD
Retailer 15$1,574 USD
Retailer 18$1,577 USD
Retailer 12$1,649 USD
Retailer 9$1,681 USD
Retailer 2$1,737 USD
Retailer 25$1,741 USD
Retailer 26$2,505 USD
Retailer 17$2,860 USD
Brilliant Earth$3,520 USD

40 data points across 26 retailers

27 retailers$322 USD to $3,520 USD

A
Cheapest Retailer
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$322 USD
A
Retailer 2
-
$373 USD
View
A
Retailer 3
-
$389 USD
View
A
Retailer 4
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$394 USD
View
A
Retailer 5
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$467 USD
£368 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
$508 USD
View
A
Retailer 7
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$555 USD
View
A
Retailer 8
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$614 USD
HK$4,800 HKD
View
Price last confirmed 27 days ago
A
Retailer 9
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$659 USD
View
A
Retailer 10
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$698 USD
€665 EUR
View
A
Retailer 11
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$741 USD
ZAR 11,973 ZAR
View
A
Retailer 12
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$768 USD
£605 GBP
View
Price last confirmed 21 days ago
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Retailer 13
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$785 USD
£618 GBP
View
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Retailer 14
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$861 USD
View
A
Retailer 15
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$1,008 USD
View
A
Retailer 16
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$1,022 USD
A$1,573 AUD
View
A
Retailer 17
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$1,073 USD
View
B+
Retailer 18
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$1,416 USD
View
B+
Retailer 19
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$1,574 USD
View
B+
Retailer 20
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$1,577 USD
View
B+
Retailer 21
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$1,649 USD
View
B+
Retailer 22
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$1,681 USD
SGD 2,271 SGD
View
B+
Retailer 23
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$1,737 USD
A$2,673 AUD
View
B+
Retailer 24
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$1,741 USD
£1,371 GBP
View
B
Retailer 25
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$2,505 USD
View
B
Retailer 26
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$2,860 USD
View
Most Expensive
B
Brilliant Earth
16223268Y · Sep 30
$3,520 USD
View
26 more retailers have this diamond
Prices start from $322 USDSave up to $3,198 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
1.58ct Radiant
$322 USD