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Radiant|Lab Grown|IGI

1.30ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG648436048

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

Certificate IGI LG648436048

Diamond specifications and retailer prices

From €138 EUR
$154 USD
As of November 2, 2026
Save €798 EUR (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €936 EUR at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.3ct lab-grown radiant diamond

This 1.3ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648436048 or 648436048. Listed at 15 retailers as of November 1, 2026, with prices from €138 to €936, a €798 spread on the same certified stone. Reve Diamonds lists it at €936. 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

1.30
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648436048
Dimensions7.39 × 5.34 × 3.60 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm5.34 mm1.30 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648436048
Side View
Table 60.0%Crown 40.6°Girdle: MED-STKPavilion 30°Culet: NoneDepth 67.4%

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: Nov 2
Current: €298 EUR|Low: €138 EUR|High: €936 EUR|Avg: €432 EUR|+4.6%
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
Retailer 16
Reve Diamonds
November 2, 2026
Retailer 5€138 EUR
Retailer 3€153 EUR
Retailer 12€171 EUR
Retailer 16€171 EUR
Retailer 4€205 EUR
Retailer 11€231 EUR
Retailer 1€298 EUR
Retailer 10€332 EUR
Retailer 2€398 EUR
Retailer 15€439 EUR
Retailer 8€487 EUR
Retailer 6€548 EUR
Retailer 13€579 EUR
Retailer 7€598 EUR
Retailer 14€743 EUR
Retailer 9€797 EUR
Reve Diamonds€936 EUR

18 data points across 17 retailers

15 retailers€138 EUR to €936 EUR

A
Cheapest Retailer
-
€138 EUR
$154 USD
A
Retailer 2
-
€153 EUR
$171 USD
View
Final sale: no returns
Retailer 3
-
€171 EUR
$191 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€171 EUR
$191 USD
View
B+
Retailer 5
-
€231 EUR
$258 USD
View
A
Retailer 6
-
€298 EUR
£262 GBP
View
A
Retailer 7
-
€332 EUR
£292 GBP
View
B+
Retailer 8
-
€398 EUR
$445 USD
View
B+
Retailer 9
-
€439 EUR
$490 USD
View
B+
Retailer 10
-
€548 EUR
$612 USD
View
B
Retailer 11
-
€579 EUR
$647 USD
View
B
Retailer 12
-
€598 EUR
$668 USD
View
Retailer 13
-
€743 EUR
$830 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
€797 EUR
£701 GBP
View
Most Expensive
B
Reve Diamonds
F3D683A23 · Nov 1
€936 EUR
$1,046 USD
View
14 more retailers have this diamond
Prices start from €138 EURSave up to €798 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
1.30ct Radiant
€138 EUR