Radiant|Lab Grown|IGI

1.00ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG825633175

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

Certificate IGI LG825633175

Diamond specifications and retailer prices

From $375 USD
As of October 30, 2026
Save $2,225 USD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,600 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825633175 or 825633175. Listed at 16 retailers as of October 30, 2026, with prices from $375 to $2,600, a $2,225 spread on the same certified stone. Brilliant Earth lists it at $2,600. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.4°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825633175
Dimensions6.85 × 4.88 × 3.36 mm
L/W Ratio1.40
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
6.85 mm4.88 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825633175
Side View
Table 71.0%Crown 27.4°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 68.9%

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: $1,496 USD|Low: $375 USD|High: $1,840 USD|Avg: $1,000 USD
Retailer 1
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
November 1, 2026
Retailer 13$375 USD
Retailer 8$420 USD
Retailer 14$420 USD
Retailer 3$465 USD
Retailer 2$480 USD
Retailer 6$601 USD
Retailer 10$615 USD
Retailer 11$625 USD
Retailer 5$765 USD
Retailer 9$841 USD
Retailer 12$1,305 USD
Retailer 1$1,496 USD
Retailer 7$1,534 USD
Retailer 15$1,753 USD
Retailer 4$1,820 USD

40 data points across 15 retailers

16 retailers$375 USD to $2,600 USD

A
Cheapest Retailer
-
$375 USD
A
Retailer 2
-
$420 USD
View
Final sale: no returns
A
Retailer 3
-
$420 USD
View
A
Retailer 4
-
$465 USD
View
A
Retailer 5
-
$480 USD
£378 GBP
View
B+
Retailer 6
-
$601 USD
View
B+
Retailer 7
-
$615 USD
View
B+
Retailer 8
-
$625 USD
View
B+
Retailer 9
-
$765 USD
View
B+
Retailer 10
-
$841 USD
£662 GBP
View
B
Retailer 11
-
$1,305 USD
View
B
Retailer 12
-
$1,496 USD
View
B
Retailer 13
-
$1,534 USD
View
B
Retailer 14
-
$1,753 USD
View
B
Retailer 15
-
$1,820 USD
£1,433 GBP
View
Most Expensive
B
Brilliant Earth
22411353A · Oct 31
$2,600 USD
View
15 more retailers have this diamond
Prices start from $375 USDSave up to $2,225 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
1.00ct Radiant
$375 USD