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Radiant|Lab Grown|IGI

1.00ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG800610785

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

Certificate IGI LG800610785

Diamond specifications and retailer prices

From $144 USD
As of November 6, 2026
Save $870 USD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,014 USD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG800610785 or 800610785. Listed at 18 retailers as of November 6, 2026, with prices from $144 to $1,014, a $870 spread on the same certified stone. Reve Diamonds lists it at $1,014. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.2°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800610785
Dimensions7.39 × 4.80 × 3.08 mm
L/W Ratio1.54
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
7.39 mm4.80 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800610785
Side View
Table 63.0%Crown 26.2°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 64.2%

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: Nov 6
Current: $308 USD|Low: $135 USD|High: $1,014 USD|Avg: $369 USD|+2.3%
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
Reve Diamonds
November 6, 2026
Retailer 2$144 USD
Retailer 14$167 USD
Retailer 11$174 USD
Retailer 6$178 USD
Retailer 8$212 USD
Retailer 9$303 USD
Retailer 1$308 USD
Retailer 15$314 USD
Retailer 3$331 USD
Retailer 4$338 USD
Retailer 12$467 USD
Retailer 13$573 USD
Retailer 5$628 USD
Retailer 7$630 USD
Retailer 10$830 USD
Reve Diamonds$1,014 USD

37 data points across 16 retailers

18 retailers$144 USD to $1,014 USD

A
Cheapest Retailer
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$144 USD
A
Retailer 2
-
$167 USD
View
A
Retailer 3
-
$174 USD
View
Final sale: no returns
Retailer 4
-
$174 USD
View
Price last confirmed 13 days ago
A
Retailer 5
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$178 USD
View
A
Retailer 6
-
$212 USD
View
A
Retailer 7
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$303 USD
View
A
Retailer 8
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$308 USD
View
A
Retailer 9
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$314 USD
View
A
Retailer 10
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$331 USD
View
A
Retailer 11
-
$338 USD
View
B+
Retailer 12
-
$467 USD
View
B+
Retailer 13
-
$573 USD
View
Retailer 14
-
$604 USD
View
Price last confirmed 103 days ago
B
Retailer 15
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$628 USD
View
B
Retailer 16
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$630 USD
View
B
Retailer 17
-
$830 USD
View
Most Expensive
B
Reve Diamonds
0CA34C042 · Nov 6
$1,014 USD
View
17 more retailers have this diamond
Prices start from $144 USDSave up to $870 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
$144 USD