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Round|Lab Grown|IGI

1.51ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG770653207

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770653207

Diamond specifications and retailer prices

From €176 EUR
$197 USD
As of November 1, 2026
Save €844 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,021 EUR at MOH London · As of November 1, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770653207 or 770653207. Listed at 14 retailers as of November 1, 2026, with prices from €176 to €1,021, a €844 spread on the same certified stone. MOH London lists it at €1,021. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770653207
Dimensions7.48 × 7.47 × 4.38 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
7.48 mm7.47 mm1.51 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770653207
Side View
Table 63.0%Crown 32.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 58.6%

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: Nov 1
Current: €1,021 EUR|Low: €169 EUR|High: €1,033 EUR|Avg: €519 EUR
MOH London
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
November 1, 2026
Retailer 10€176 EUR
Retailer 3€197 EUR
Retailer 15€204 EUR
Retailer 4€218 EUR
Retailer 12€218 EUR
Retailer 13€380 EUR
Retailer 2€401 EUR
Retailer 5€513 EUR
Retailer 14€516 EUR
Retailer 11€698 EUR
Retailer 16€702 EUR
Retailer 9€704 EUR
Retailer 6€713 EUR
Retailer 8€798 EUR
Retailer 7€938 EUR
MOH London€1,021 EUR

19 data points across 16 retailers

14 retailers€176 EUR to €1,021 EUR

A
Cheapest Retailer
-
€176 EUR
$197 USD
A
Retailer 2
-
€197 EUR
$220 USD
View
Final sale: no returns
A
Retailer 3
-
€204 EUR
$228 USD
View
Retailer 4
-
€218 EUR
$244 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
€218 EUR
$244 USD
View
B+
Retailer 6
-
€380 EUR
$424 USD
View
A
Retailer 7
-
€401 EUR
View
A
Retailer 8
-
€513 EUR
$573 USD
View
A
Retailer 9
-
€516 EUR
$576 USD
View
A
Retailer 10
-
€698 EUR
$780 USD
View
A
Retailer 11
-
€702 EUR
$784 USD
View
A
Retailer 12
-
€704 EUR
$787 USD
View
A
Retailer 13
-
€713 EUR
SGD 1,076 SGD
View
Most Expensive
A
MOH London
LG770653207 · Nov 1
€1,021 EUR
£898 GBP
View
13 more retailers have this diamond
Prices start from €176 EURSave up to €844 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
€176 EUR