Radiant|Lab Grown|IGI

1.53ct H IF Radiant Lab Grown Diamond

ID • H/IF • IGI LG644486939

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

Certificate IGI LG644486939

Diamond specifications and retailer prices

From €251 EUR
$280 USD
As of October 30, 2026
Save €1,387 EUR (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €1,638 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.53ct lab-grown radiant diamond

This 1.53ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG644486939 or 644486939. Listed at 24 retailers as of October 30, 2026, with prices from €251 to €1,638, a €1,387 spread on the same certified stone. Brilliant Earth lists it at €1,638. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
H
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644486939
Dimensions8.41 × 5.64 × 3.68 mm
L/W Ratio1.49
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 Faint Blue
Top View
8.41 mm5.64 mm1.53 ctH / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644486939
Side View
Table 65.0%Crown 41.8°Girdle: MED-STKPavilion 32.7°Culet: NoneDepth 65.2%

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: €1,638 EUR|Low: €232 EUR|High: €1,951 EUR|Avg: €729 EUR|-16.1%
Brilliant Earth
Retailer 2
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Retailer 23
October 30, 2026
Retailer 7€251 EUR
Retailer 9€283 EUR
Retailer 5€291 EUR
Retailer 21€311 EUR
Retailer 23€311 EUR
Retailer 13€338 EUR
Retailer 16€344 EUR
Retailer 2€419 EUR
Retailer 20€421 EUR
Retailer 19€534 EUR
Retailer 3€545 EUR
Retailer 4€550 EUR
Retailer 8€552 EUR
Retailer 18€722 EUR
Retailer 11€794 EUR
Retailer 22€998 EUR
Retailer 14€1,000 EUR
Retailer 6€1,043 EUR
Retailer 15€1,187 EUR
Retailer 17€1,252 EUR
Retailer 12€1,303 EUR
Retailer 10€1,343 EUR
Brilliant Earth€1,638 EUR

27 data points across 23 retailers

24 retailers€251 EUR to €1,638 EUR

A
Cheapest Retailer
-
€251 EUR
$280 USD
A
Retailer 2
-
€283 EUR
$316 USD
View
Final sale: no returns
A
Retailer 3
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€291 EUR
$325 USD
View
A
Retailer 4
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€311 EUR
$347 USD
View
A
Retailer 5
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€311 EUR
$347 USD
View
A
Retailer 6
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€338 EUR
£297 GBP
View
A
Retailer 7
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€344 EUR
HK$3,000 HKD
View
A
Retailer 8
-
€419 EUR
$468 USD
View
A
Retailer 9
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€421 EUR
$470 USD
View
B+
Retailer 10
-
€534 EUR
ZAR 9,630 ZAR
View
A
Retailer 11
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€545 EUR
$609 USD
View
A
Retailer 12
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€550 EUR
$614 USD
View
Retailer 13
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€552 EUR
View
Price last confirmed 8 days ago
A
Retailer 14
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€722 EUR
A$1,241 AUD
View
B+
Retailer 15
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€794 EUR
$887 USD
View
B+
Retailer 16
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€998 EUR
$1,115 USD
View
B+
Retailer 17
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€1,000 EUR
SGD 1,509 SGD
View
B+
Retailer 18
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€1,043 EUR
$1,166 USD
View
Retailer 19
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€1,187 EUR
£1,044 GBP
View
Price last confirmed 19 days ago
B+
Retailer 20
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€1,252 EUR
£1,101 GBP
View
Retailer 21
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€1,303 EUR
$1,456 USD
View
Price last confirmed 17 days ago
Retailer 22
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€1,343 EUR
$1,500 USD
View
Price last confirmed 13 days ago
Retailer 23
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€1,366 EUR
$1,526 USD
View
Price last confirmed 61 days ago
Most Expensive
B+
Brilliant Earth
14253348A · Oct 30
€1,638 EUR
$1,830 USD
View
23 more retailers have this diamond
Prices start from €251 EURSave up to €1,387 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
1.53ct Radiant
€251 EUR