Radiant|Lab Grown|IGI

1.01ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG519237667

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

Certificate IGI LG519237667

Diamond specifications and retailer prices

From $162 USD
As of October 30, 2026
Save $911 USD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,073 USD at Reve Diamonds · As of October 30, 2026
View at Reve 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG519237667 or 519237667. Listed at 19 retailers as of October 30, 2026, with prices from $162 to $1,073, a $911 spread on the same certified stone. Reve Diamonds lists it at $1,073. 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

1.01
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.4°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519237667
Dimensions6.75 × 4.94 × 3.40 mm
L/W Ratio1.37
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
6.75 mm4.94 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519237667
Side View
Table 67.5%Crown 46.4°Girdle: MED-STKPavilion 32.6°Culet: NoneDepth 68.8%

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 30
Current: $182 USD|Low: $181 USD|High: $951 USD|Avg: $462 USD|-16.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 1$182 USD
Retailer 6$272 USD
Retailer 2$355 USD
Retailer 4$375 USD
Retailer 8$394 USD
Retailer 9$443 USD
Retailer 5$527 USD
Retailer 7$760 USD
Retailer 3$946 USD

42 data points across 9 retailers

19 retailers$162 USD to $1,073 USD

A
Cheapest Retailer
-
$162 USD
A
Retailer 2
-
$182 USD
View
Final sale: no returns
A
Retailer 3
-
$188 USD
View
A
Retailer 4
-
$201 USD
View
A
Retailer 5
-
$201 USD
View
A
Retailer 6
-
$230 USD
HK$1,800 HKD
View
B+
Retailer 7
-
$272 USD
View
A
Retailer 8
-
$325 USD
View
A
Retailer 9
-
$355 USD
£280 GBP
View
Retailer 10
-
$375 USD
€357 EUR
View
Price last confirmed 7 days ago
Retailer 11
-
$394 USD
£311 GBP
View
Price last confirmed 25 days ago
B+
Retailer 12
-
$443 USD
View
B+
Retailer 13
-
$527 USD
View
B
Retailer 14
-
$619 USD
£487 GBP
View
B
Retailer 15
-
$647 USD
View
B
Retailer 16
-
$702 USD
View
B
Retailer 17
-
$760 USD
View
B
Retailer 18
-
$946 USD
£745 GBP
View
Most Expensive
B
Reve Diamonds
730792602 · Oct 30
$1,073 USD
View
18 more retailers have this diamond
Prices start from $162 USDSave up to $911 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
$162 USD