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Radiant|Lab Grown|IGI

1.00ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG689562321

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

Certificate IGI LG689562321

Diamond specifications and retailer prices

From €191 EUR
$213 USD
As of October 30, 2026
Save €1,600 EUR (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,790 EUR 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG689562321 or 689562321. Listed at 21 retailers as of October 30, 2026, with prices from €191 to €1,790, a €1,600 spread on the same certified stone. Brilliant Earth lists it at €1,790. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562321
Dimensions6.88 × 4.97 × 3.36 mm
L/W Ratio1.38
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
6.88 mm4.97 mm1.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562321
Side View
Table 65.0%Crown 41.2°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 67.6%

Caratlytics Score

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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: €1,790 EUR|Low: €181 EUR|High: €2,112 EUR|Avg: €601 EUR|-15.3%
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
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 3€191 EUR
Retailer 14€213 EUR
Retailer 18€221 EUR
Retailer 7€236 EUR
Retailer 10€236 EUR
Retailer 16€405 EUR
Retailer 8€405 EUR
Retailer 12€436 EUR
Retailer 5€446 EUR
Retailer 13€446 EUR
Retailer 19€487 EUR
Retailer 17€577 EUR
Retailer 6€641 EUR
Retailer 4€758 EUR
Retailer 11€806 EUR
Retailer 15€877 EUR
Retailer 2€946 EUR
Retailer 9€1,104 EUR
Brilliant Earth€1,790 EUR

37 data points across 19 retailers

21 retailers€191 EUR to €1,790 EUR

A
Cheapest Retailer
-
€191 EUR
$213 USD
A
Retailer 2
-
€213 EUR
$238 USD
View
Final sale: no returns
A
Retailer 3
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€221 EUR
$247 USD
View
A
Retailer 4
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€236 EUR
$264 USD
View
A
Retailer 5
-
€236 EUR
$264 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
€405 EUR
ZAR 7,313 ZAR
View
A
Retailer 7
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€405 EUR
$453 USD
View
A
Retailer 8
-
€436 EUR
£384 GBP
View
A
Retailer 9
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€446 EUR
$498 USD
View
A
Retailer 10
-
€446 EUR
View
A
Retailer 11
-
€487 EUR
$544 USD
View
B+
Retailer 12
-
€577 EUR
A$991 AUD
View
B+
Retailer 13
-
€641 EUR
$716 USD
View
B+
Retailer 14
-
€758 EUR
$847 USD
View
B+
Retailer 15
-
€806 EUR
$900 USD
View
B
Retailer 16
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€848 EUR
$947 USD
View
B+
Retailer 17
-
€877 EUR
A$1,507 AUD
View
B+
Retailer 18
-
€946 EUR
£832 GBP
View
Retailer 19
-
€1,087 EUR
$1,214 USD
View
Price last confirmed 62 days ago
B
Retailer 20
-
€1,104 EUR
$1,234 USD
View
Most Expensive
B
Brilliant Earth
15933854A · Oct 31
€1,790 EUR
$2,000 USD
View
20 more retailers have this diamond
Prices start from €191 EURSave up to €1,600 EUR

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
€191 EUR