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Round|Lab Grown|IGI

1.51ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG786640066

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786640066

Diamond specifications and retailer prices

From €382 EUR
$429 USD
As of November 1, 2026
Save €1,820 EUR (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €2,844 EUR at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786640066 or 786640066. Listed at 26 retailers as of November 1, 2026, with a 476% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786640066
Dimensions7.42 × 7.46 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.42 mm7.46 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786640066
Side View
Table 58.0%Crown 33.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €2,202 EUR|Low: €382 EUR|High: €2,853 EUR|Avg: €1,032 EUR|-22.8%
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
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 3€382 EUR
Retailer 18€428 EUR
Retailer 22€429 EUR
Retailer 7€474 EUR
Retailer 8€474 EUR
Retailer 21€525 EUR
Retailer 19€602 EUR
Retailer 9€637 EUR
Retailer 2€744 EUR
Retailer 6€755 EUR
Retailer 16€780 EUR
Retailer 13€818 EUR
Retailer 15€833 EUR
Retailer 5€891 EUR
Retailer 17€1,077 EUR
Retailer 11€1,509 EUR
Retailer 4€1,525 EUR
Retailer 14€1,554 EUR
Retailer 10€1,716 EUR
Retailer 20€1,745 EUR
Retailer 12€1,776 EUR
Brilliant Earth€2,202 EUR

36 data points across 22 retailers

26 retailers€382 EUR to €2,202 EUR

A+
Cheapest Retailer
-
€382 EUR
$429 USD
A
Retailer 2
-
€428 EUR
$480 USD
View
Final sale: no returns
A
Retailer 3
-
€429 EUR
$481 USD
View
Retailer 4
-
€474 EUR
$532 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€474 EUR
$532 USD
View
A
Retailer 6
-
€525 EUR
HK$4,600 HKD
View
A
Retailer 7
-
€602 EUR
$675 USD
View
A
Retailer 8
-
€637 EUR
$715 USD
View
A
Retailer 9
-
€744 EUR
View
A
Retailer 10
-
€755 EUR
$847 USD
View
A
Retailer 11
-
€780 EUR
£689 GBP
View
A
Retailer 12
-
€818 EUR
ZAR 14,827 ZAR
View
A
Retailer 13
-
€833 EUR
A$1,438 AUD
View
A
Retailer 14
-
€891 EUR
$999 USD
View
B+
Retailer 15
-
€1,077 EUR
$1,208 USD
View
B+
Retailer 16
-
€1,145 EUR
$1,284 USD
View
B+
Retailer 17
-
€1,509 EUR
SGD 2,287 SGD
View
B+
Retailer 18
-
€1,525 EUR
$1,711 USD
View
B+
Retailer 19
-
€1,554 EUR
$1,743 USD
View
B+
Retailer 20
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€1,582 EUR
$1,774 USD
View
B+
Retailer 21
-
€1,657 EUR
$1,859 USD
View
B+
Retailer 22
-
€1,716 EUR
$1,925 USD
View
B+
Retailer 23
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€1,745 EUR
£1,541 GBP
View
B+
Retailer 24
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€1,776 EUR
$1,992 USD
View
B
Retailer 25
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€2,202 EUR
$2,470 USD
View
Most Expensive
Brilliant Earth
18904921A · Oct 16
€2,844 EUR
$3,190 USD
View
Price last confirmed 17 days ago
25 more retailers have this diamond
Prices start from €382 EURSave up to €1,820 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 Round
€382 EUR