Radiant|Lab Grown|IGI

1.01ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG840632289

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG840632289

Diamond specifications and retailer prices

From $185 USD
As of October 30, 2026
Save $1,453 USD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,638 USD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840632289 or 840632289. Listed at 22 retailers as of October 30, 2026, with prices from $185 to $1,638, a $1,453 spread on the same certified stone. Helzberg Diamonds lists it at $1,638. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.9°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632289
Dimensions7.04 × 4.96 × 3.45 mm
L/W Ratio1.42
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
7.04 mm4.96 mm1.01 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632289
Side View
Table 74.0%Crown 49.9°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 69.6%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $1,638 USD|Low: $185 USD|High: $1,820 USD|Avg: $656 USD
Helzberg Diamonds
Retailer 2
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Retailer 22
October 31, 2026
Retailer 5$185 USD
Retailer 12$208 USD
Retailer 20$215 USD
Retailer 7$230 USD
Retailer 8$230 USD
Retailer 4$238 USD
Retailer 17$395 USD
Retailer 22$402 USD
Retailer 11$404 USD
Retailer 2$416 USD
Retailer 10$469 USD
Retailer 3$543 USD
Retailer 18$561 USD
Retailer 13$585 USD
Retailer 14$645 USD
Retailer 6$739 USD
Retailer 9$793 USD
Retailer 15$798 USD
Retailer 19$1,077 USD
Retailer 21$1,265 USD
Retailer 16$1,390 USD
Helzberg Diamonds$1,638 USD

19 data points across 22 retailers

22 retailers$185 USD to $1,638 USD

A
Cheapest Retailer
-
$185 USD
A
Retailer 2
-
$208 USD
View
Final sale: no returns
A
Retailer 3
-
$215 USD
View
A
Retailer 4
-
$230 USD
View
A
Retailer 5
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$230 USD
View
Retailer 6
-
$238 USD
£187 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
$395 USD
ZAR 6,378 ZAR
View
Retailer 8
-
$402 USD
€383 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
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$404 USD
View
A
Retailer 10
-
$416 USD
£328 GBP
View
A
Retailer 11
-
$469 USD
View
A
Retailer 12
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$543 USD
View
A
Retailer 13
-
$561 USD
A$863 AUD
View
A
Retailer 14
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$585 USD
View
B+
Retailer 15
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$645 USD
SGD 871 SGD
View
B+
Retailer 16
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$739 USD
View
B+
Retailer 17
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$793 USD
View
B+
Retailer 18
-
$798 USD
View
B+
Retailer 19
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$1,077 USD
£848 GBP
View
Retailer 20
-
$1,265 USD
View
Price last confirmed 9 days ago
B
Retailer 21
-
$1,390 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJIIOP · Oct 31
$1,638 USD
View
21 more retailers have this diamond
Prices start from $185 USDSave up to $1,453 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.01ct Radiant
$185 USD