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Radiant|Lab Grown|IGI

1.58ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG640402420

Certificate IGI LG640402420

Diamond specifications and retailer prices

From $303 USD
Save $3,217 USD (91%) vs most expensive(unlock to see where)
26 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 LG640402420 or 640402420. Listed at 26 retailers, with prices from $303 to $3,520 at Brilliant Earth, a $3,217 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640402420
Dimensions8.41 × 5.93 × 8.41 mm
L/W Ratio1.42
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
8.41 mm5.93 mm1.58 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640402420
Side View
Table 63.0%Crown 30.8°Girdle: MediumPavilion 34.9°Culet: NoneDepth 65.4%

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: $3,520 USD|Low: $241 USD|High: $4,280 USD|Avg: $1,308 USD|-17.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 1, 2026
Retailer 20$363 USD
Retailer 13$476 USD
Retailer 3$535 USD
Retailer 6$637 USD
Retailer 4$657 USD
Retailer 19$697 USD
Retailer 14$733 USD
Retailer 8$857 USD
Retailer 9$939 USD
Retailer 18$961 USD
Retailer 15$1,053 USD
Retailer 10$1,492 USD
Retailer 12$1,517 USD
Retailer 7$1,551 USD
Retailer 5$1,587 USD
Retailer 16$1,680 USD
Retailer 2$1,723 USD
Retailer 17$2,495 USD
Retailer 11$2,690 USD
Brilliant Earth$3,520 USD

42 data points across 20 retailers

26 retailers$303 USD to $3,520 USD

A
Cheapest Retailer
-
$303 USD
A
Retailer 2
-
$351 USD
View
A
Retailer 3
-
$363 USD
View
A
Retailer 4
-
$370 USD
View
A
Retailer 5
-
$476 USD
View
A
Retailer 6
-
$535 USD
View
A
Retailer 7
-
$576 USD
HK$4,500 HKD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$637 USD
View
A
Retailer 9
-
$657 USD
€626 EUR
View
A
Retailer 10
-
$697 USD
ZAR 11,261 ZAR
View
A
Retailer 11
-
$719 USD
£566 GBP
View
Price last confirmed 21 days ago
A
Retailer 12
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$734 USD
£578 GBP
View
A
Retailer 13
-
$857 USD
View
A
Retailer 14
-
$939 USD
View
A
Retailer 15
-
$961 USD
A$1,479 AUD
View
A
Retailer 16
-
$1,053 USD
View
B+
Retailer 17
-
$1,332 USD
View
B+
Retailer 18
-
$1,492 USD
View
B+
Retailer 19
-
$1,517 USD
View
B+
Retailer 20
-
$1,551 USD
View
B+
Retailer 21
-
$1,587 USD
SGD 2,145 SGD
View
B+
Retailer 22
-
$1,680 USD
£1,323 GBP
View
B+
Retailer 23
-
$1,723 USD
A$2,651 AUD
View
B
Retailer 24
-
$2,495 USD
View
B
Retailer 25
-
$2,690 USD
View
Most Expensive
B
Brilliant Earth
11203816Y · Oct 1
$3,520 USD
View
25 more retailers have this diamond
Prices start from $303 USDSave up to $3,217 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
$303 USD