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Radiant|Lab Grown|IGI

1.05ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG681543680

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

Certificate IGI LG681543680

Diamond specifications and retailer prices

From €267 EUR
$300 USD
As of November 1, 2026
Save €1,284 EUR (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,551 EUR at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG681543680 or 681543680. Listed at 7 retailers as of November 1, 2026, with prices from €267 to €1,551, a €1,284 spread on the same certified stone. Do Amore Diamonds lists it at €1,551. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG681543680
Dimensions7.22 × 5.01 × 3.31 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
Pre-existing laser inscription on girdle. As Grown - No indication of post-growth treatment.. This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
7.22 mm5.01 mm1.05 ctD / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG681543680
Side View
Table 75.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,551 EUR|Low: €267 EUR|High: €1,551 EUR|Avg: €680 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6€267 EUR
Retailer 4€396 EUR
Retailer 5€441 EUR
Retailer 7€487 EUR
Retailer 3€513 EUR
Retailer 8€787 EUR
Retailer 2€1,016 EUR
Do Amore Diamonds€1,551 EUR

13 data points across 8 retailers

7 retailers€267 EUR to €1,551 EUR

B+
Cheapest Retailer
-
€267 EUR
$300 USD
B
Retailer 2
-
€396 EUR
$444 USD
View
B
Retailer 3
-
€441 EUR
$495 USD
View
B
Retailer 4
-
€513 EUR
$575 USD
View
C
Retailer 5
-
€790 EUR
£698 GBP
View
C
Retailer 6
-
€1,016 EUR
£897 GBP
View
Most Expensive
C
Do Amore Diamonds
7-1678665 · Nov 1
€1,551 EUR
$1,740 USD
View
6 more retailers have this diamond
Prices start from €267 EURSave up to €1,284 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.

B+
1.05ct Radiant
€267 EUR