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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG658484148

Shape and cutting style on the report: Round brilliant

Certificate IGI LG658484148

Diamond specifications and retailer prices

From €388 EUR
$434 USD
As of October 31, 2026
Save €3,031 EUR (89%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: €3,419 EUR at Brilliant Earth · As of October 31, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG658484148 or 658484148. Listed at 27 retailers as of October 31, 2026, with prices from €388 to €3,419, a €3,031 spread on the same certified stone. Brilliant Earth lists it at €3,419. 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 angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658484148
Dimensions7.32 × 7.35 × 4.53 mm
L/W Ratio1.00
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
7.32 mm7.35 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658484148
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

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 31
Current: €3,419 EUR|Low: €388 EUR|High: €3,938 EUR|Avg: €1,132 EUR|-13.2%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 13€388 EUR
Retailer 6€470 EUR
Retailer 17€553 EUR
Retailer 9€580 EUR
Retailer 14€582 EUR
Retailer 8€649 EUR
Retailer 19€680 EUR
Retailer 2€680 EUR
Retailer 20€740 EUR
Retailer 15€772 EUR
Retailer 5€882 EUR
Retailer 18€1,000 EUR
Retailer 3€1,017 EUR
Retailer 11€1,374 EUR
Retailer 7€1,418 EUR
Retailer 16€1,542 EUR
Retailer 10€1,606 EUR
Retailer 12€1,612 EUR
Retailer 4€1,693 EUR
Brilliant Earth€3,419 EUR

29 data points across 20 retailers

27 retailers€388 EUR to €3,419 EUR

Retailer 1
-
€347 EUR
$388 USD
Price last confirmed 14 days ago
A
Retailer 2
-
€388 EUR
$434 USD
View
Final sale: no returns
Retailer 3
-
€389 EUR
$435 USD
View
Price last confirmed 12 days ago
Retailer 4
-
€431 EUR
$481 USD
View
Price last confirmed 16 days ago
Retailer 5
-
€431 EUR
$481 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
€470 EUR
HK$4,100 HKD
View
A
Retailer 7
-
€553 EUR
£487 GBP
View
A
Retailer 8
-
€580 EUR
$648 USD
View
A
Retailer 9
-
€582 EUR
$650 USD
View
A
Retailer 10
-
€649 EUR
$725 USD
View
A
Retailer 11
-
€680 EUR
A$1,168 AUD
View
A
Retailer 12
-
€680 EUR
View
A
Retailer 13
-
€740 EUR
ZAR 13,362 ZAR
View
A
Retailer 14
-
€772 EUR
£679 GBP
View
B+
Retailer 15
-
€882 EUR
$985 USD
View
B+
Retailer 16
-
€1,000 EUR
A$1,718 AUD
View
B+
Retailer 17
-
€1,017 EUR
$1,136 USD
View
B+
Retailer 18
-
€1,032 EUR
$1,153 USD
View
B+
Retailer 19
-
€1,374 EUR
SGD 2,075 SGD
View
Retailer 20
-
€1,385 EUR
$1,547 USD
View
Price last confirmed 14 days ago
B+
Retailer 21
-
€1,418 EUR
$1,585 USD
View
B
Retailer 22
-
€1,507 EUR
$1,684 USD
View
B+
Retailer 23
-
€1,542 EUR
A$2,651 AUD
View
B
Retailer 24
-
€1,606 EUR
$1,794 USD
View
B
Retailer 25
-
€1,612 EUR
$1,801 USD
View
B
Retailer 26
-
€1,693 EUR
£1,489 GBP
View
Most Expensive
B
Brilliant Earth
14067819A · Oct 31
€3,419 EUR
$3,820 USD
View
26 more retailers have this diamond
Prices start from €388 EURSave up to €3,031 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
€388 EUR