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Round|Lab Grown|IGI

1.51ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG781631505

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781631505

Diamond specifications and retailer prices

From €185 EUR
As of November 3, 2026
Save €795 EUR (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €980 EUR at Brilliant Earth · As of November 4, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781631505 or 781631505. Listed at 18 retailers as of November 3, 2026, with prices from €185 to €980, a €795 spread on the same certified stone. Brilliant Earth lists it at €980. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781631505
Dimensions7.39 × 7.37 × 4.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm7.37 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781631505
Side View
Table 59.0%Crown 32.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

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: Nov 3
Current: €980 EUR|Low: €185 EUR|High: €1,123 EUR|Avg: €500 EUR|-12.7%
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
November 5, 2026
Retailer 8€185 EUR
Retailer 4€207 EUR
Retailer 3€215 EUR
Retailer 16€230 EUR
Retailer 9€231 EUR
Retailer 11€357 EUR
Retailer 5€396 EUR
Retailer 15€396 EUR
Retailer 10€398 EUR
Retailer 18€524 EUR
Retailer 14€535 EUR
Retailer 13€609 EUR
Retailer 12€641 EUR
Retailer 17€739 EUR
Retailer 6€745 EUR
Retailer 7€786 EUR
Retailer 2€919 EUR
Brilliant Earth€980 EUR

32 data points across 18 retailers

18 retailers€185 EUR to €980 EUR

A
Cheapest Retailer
-
€185 EUR
A
Retailer 2
-
€207 EUR
View
Final sale: no returns
A
Retailer 3
-
€215 EUR
View
A
Retailer 4
-
€230 EUR
View
Retailer 5
-
€231 EUR
View
Price last confirmed 11 days ago
A
Retailer 6
-
€357 EUR
View
B+
Retailer 7
-
€396 EUR
View
A
Retailer 8
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€396 EUR
View
A
Retailer 9
-
€398 EUR
View
A
Retailer 10
-
€524 EUR
View
A
Retailer 11
-
€535 EUR
View
B+
Retailer 12
-
€609 EUR
View
B+
Retailer 13
-
€641 EUR
View
B+
Retailer 14
-
€739 EUR
View
B+
Retailer 15
-
€745 EUR
View
B+
Retailer 16
-
€786 EUR
View
B+
Retailer 17
-
€919 EUR
View
Most Expensive
B+
Brilliant Earth
21501944A · Nov 4
€980 EUR
$1,100 USD
View
17 more retailers have this diamond
Prices start from €185 EURSave up to €795 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
€185 EUR