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Radiant|Lab Grown|IGI

1.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG627461503

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

Certificate IGI LG627461503

Diamond specifications and retailer prices

From €276 EUR
$308 USD
As of October 30, 2026
Save €2,482 EUR (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €2,758 EUR at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG627461503 or 627461503. Listed at 26 retailers as of October 30, 2026, with prices from €276 to €2,758, a €2,482 spread on the same certified stone. Diamond Quarter lists it at €2,758. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627461503
Dimensions8.04 × 5.80 × 3.94 mm
L/W Ratio1.39
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
8.04 mm5.80 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627461503
Side View
Table 64.0%Crown 27.5°Girdle: MediumPavilionCulet: NoneDepth 67.9%

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: €607 EUR|Low: €264 EUR|High: €3,034 EUR|Avg: €969 EUR|+1.0%
Retailer 1
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Retailer 25
November 1, 2026
Retailer 4€276 EUR
Retailer 19€308 EUR
Retailer 25€320 EUR
Retailer 3€341 EUR
Retailer 14€401 EUR
Retailer 7€482 EUR
Retailer 24€483 EUR
Retailer 12€555 EUR
Retailer 11€573 EUR
Retailer 23€587 EUR
Retailer 1€607 EUR
Retailer 13€767 EUR
Retailer 22€796 EUR
Retailer 8€906 EUR
Retailer 6€1,049 EUR
Retailer 5€1,097 EUR
Retailer 17€1,133 EUR
Retailer 15€1,139 EUR
Retailer 16€1,145 EUR
Retailer 10€1,312 EUR
Retailer 21€1,375 EUR
Retailer 9€1,376 EUR
Retailer 18€1,466 EUR
Retailer 2€2,314 EUR
Retailer 20€2,542 EUR

32 data points across 25 retailers

26 retailers€276 EUR to €2,758 EUR

A
Cheapest Retailer
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€276 EUR
$308 USD
A
Retailer 2
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€308 EUR
$344 USD
View
Final sale: no returns
A
Retailer 3
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€320 EUR
$357 USD
View
A
Retailer 4
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€341 EUR
$381 USD
View
A
Retailer 5
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€401 EUR
HK$3,500 HKD
View
A
Retailer 6
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€482 EUR
$538 USD
View
A
Retailer 7
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€483 EUR
$540 USD
View
A
Retailer 8
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€555 EUR
View
A
Retailer 9
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€573 EUR
$640 USD
View
A
Retailer 10
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€587 EUR
ZAR 10,589 ZAR
View
A
Retailer 11
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€607 EUR
£534 GBP
View
A
Retailer 12
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€767 EUR
$857 USD
View
A
Retailer 13
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€796 EUR
A$1,368 AUD
View
B+
Retailer 14
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€906 EUR
$1,012 USD
View
B+
Retailer 15
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€1,049 EUR
$1,172 USD
View
B+
Retailer 16
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€1,097 EUR
$1,226 USD
View
B+
Retailer 17
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€1,133 EUR
$1,266 USD
View
B+
Retailer 18
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€1,139 EUR
$1,273 USD
View
B+
Retailer 19
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€1,145 EUR
SGD 1,729 SGD
View
B+
Retailer 20
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€1,312 EUR
$1,466 USD
View
B+
Retailer 21
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€1,375 EUR
£1,210 GBP
View
B+
Retailer 22
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€1,376 EUR
$1,537 USD
View
Retailer 23
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€1,466 EUR
A$2,519 AUD
View
Price last confirmed 27 days ago
B
Retailer 24
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€2,314 EUR
$2,585 USD
View
B
Retailer 25
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€2,542 EUR
$2,840 USD
View
Most Expensive
B
Diamond Quarter
1.51IFDLG03EC0AN · Oct 31
€2,758 EUR
£2,426 GBP
View
25 more retailers have this diamond
Prices start from €276 EURSave up to €2,482 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
1.51ct Radiant
€276 EUR