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Radiant|Lab Grown|IGI

0.99ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG825664754

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

Certificate IGI LG825664754

Diamond specifications and retailer prices

From $183 USD
As of October 27, 2026
Save $1,487 USD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,670 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 0.99ct lab-grown radiant diamond

This 0.99ct lab-grown radiant sits in the just-under-one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825664754 or 825664754. Listed at 21 retailers as of October 27, 2026, with prices from $183 to $1,670, a $1,487 spread on the same certified stone. Brilliant Earth lists it at $1,670. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.99
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.7°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825664754
Dimensions7.04 × 4.71 × 3.38 mm
L/W Ratio1.49
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 mm4.71 mm0.99 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825664754
Side View
Table 62.0%Crown 25.7°Girdle: ThickPavilion 37.1°Culet: NoneDepth 71.8%

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 27
Current: $1,670 USD|Low: $190 USD|High: $1,670 USD|Avg: $603 USD|+0.6%
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
October 30, 2026
Retailer 7$205 USD
Retailer 2$279 USD
Retailer 14$401 USD
Retailer 6$402 USD
Retailer 9$411 USD
Retailer 11$411 USD
Retailer 16$466 USD
Retailer 12$567 USD
Retailer 15$578 USD
Retailer 4$599 USD
Retailer 8$625 USD
Retailer 3$767 USD
Retailer 5$785 USD
Retailer 13$1,010 USD
Retailer 10$1,069 USD
Brilliant Earth$1,670 USD

32 data points across 16 retailers

21 retailers$183 USD to $1,670 USD

A
Cheapest Retailer
-
$183 USD
A
Retailer 2
-
$205 USD
View
Final sale: no returns
A
Retailer 3
-
$213 USD
View
A
Retailer 4
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$227 USD
View
A
Retailer 5
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$227 USD
View
A
Retailer 6
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$279 USD
£220 GBP
View
A
Retailer 7
-
$401 USD
€382 EUR
View
A
Retailer 8
-
$402 USD
View
A
Retailer 9
-
$411 USD
£324 GBP
View
A
Retailer 10
-
$411 USD
ZAR 6,643 ZAR
View
A
Retailer 11
-
$466 USD
View
A
Retailer 12
-
$567 USD
A$873 AUD
View
A
Retailer 13
-
$578 USD
View
A
Retailer 14
-
$599 USD
View
A
Retailer 15
-
$625 USD
SGD 844 SGD
View
B+
Retailer 16
-
$731 USD
View
B+
Retailer 17
-
$767 USD
View
B+
Retailer 18
-
$785 USD
View
Retailer 19
-
$1,010 USD
View
Price last confirmed 11 days ago
B+
Retailer 20
-
$1,069 USD
£842 GBP
View
Most Expensive
B
Brilliant Earth
21418729A · Oct 29
$1,670 USD
View
20 more retailers have this diamond
Prices start from $183 USDSave up to $1,487 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
0.99ct Radiant
$183 USD