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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 €384 EUR
$429 USD
As of October 29, 2026
Save €1,827 EUR (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €2,855 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 October 29, 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
Color
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: Oct 29
Current: €2,211 EUR|Low: €384 EUR|High: €2,864 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 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
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Retailer 21
Retailer 22
November 1, 2026
Retailer 3€384 EUR
Retailer 17€430 EUR
Retailer 22€431 EUR
Retailer 7€476 EUR
Retailer 8€476 EUR
Retailer 21€527 EUR
Retailer 19€604 EUR
Retailer 9€640 EUR
Retailer 13€745 EUR
Retailer 6€758 EUR
Retailer 2€784 EUR
Retailer 18€819 EUR
Retailer 15€837 EUR
Retailer 5€894 EUR
Retailer 16€1,081 EUR
Retailer 11€1,515 EUR
Retailer 4€1,531 EUR
Retailer 14€1,560 EUR
Retailer 10€1,723 EUR
Retailer 20€1,752 EUR
Retailer 12€1,783 EUR
Brilliant Earth€2,211 EUR

35 data points across 22 retailers

26 retailers€384 EUR to €2,211 EUR

A+
Cheapest Retailer
-
€384 EUR
$429 USD
A
Retailer 2
-
€430 EUR
$480 USD
View
Final sale: no returns
A
Retailer 3
-
€431 EUR
$481 USD
View
A
Retailer 4
-
€476 EUR
$532 USD
View
A
Retailer 5
-
€476 EUR
$532 USD
View
A
Retailer 6
-
€527 EUR
HK$4,600 HKD
View
A
Retailer 7
-
€604 EUR
$675 USD
View
A
Retailer 8
-
€640 EUR
$715 USD
View
A
Retailer 9
-
€745 EUR
View
A
Retailer 10
-
€758 EUR
$847 USD
View
A
Retailer 11
-
€784 EUR
£689 GBP
View
A
Retailer 12
-
€819 EUR
ZAR 14,774 ZAR
View
A
Retailer 13
-
€837 EUR
A$1,438 AUD
View
A
Retailer 14
-
€894 EUR
$999 USD
View
B+
Retailer 15
-
€1,081 EUR
$1,208 USD
View
B+
Retailer 16
-
€1,149 EUR
$1,284 USD
View
B+
Retailer 17
-
€1,515 EUR
SGD 2,287 SGD
View
B+
Retailer 18
-
€1,531 EUR
$1,711 USD
View
B+
Retailer 19
-
€1,560 EUR
$1,743 USD
View
B+
Retailer 20
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€1,588 EUR
$1,774 USD
View
B+
Retailer 21
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€1,664 EUR
$1,859 USD
View
B+
Retailer 22
-
€1,723 EUR
$1,925 USD
View
B+
Retailer 23
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€1,752 EUR
£1,541 GBP
View
B+
Retailer 24
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€1,783 EUR
$1,992 USD
View
B
Retailer 25
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€2,211 EUR
$2,470 USD
View
Most Expensive
Brilliant Earth
18904921A · Oct 16
€2,855 EUR
$3,190 USD
View
Price last confirmed 15 days ago
25 more retailers have this diamond
Prices start from €384 EURSave up to €1,827 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
€384 EUR