CaratHunter
Plans
Round|Lab Grown|IGI

1.51ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG846656607

Shape and cutting style on the report: Round brilliant

Certificate IGI LG846656607

Diamond specifications and retailer prices

From €230 EUR
HK$2,000 HKD
As of October 28, 2026
Save €884 EUR (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,114 EUR at Brilliant Earth · As of October 29, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG846656607 or 846656607. Listed at 10 retailers as of October 28, 2026, with prices from €230 to €1,114, a €884 spread on the same certified stone. Brilliant Earth lists it at €1,114. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846656607
Dimensions7.39 × 7.45 × 4.48 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm7.45 mm1.51 ctE / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG846656607
Side View
Table 61.0%Crown 33.3°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
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 28
Current: €342 EUR|Low: €189 EUR|High: €979 EUR|Avg: €486 EUR|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9€189 EUR
Retailer 3€230 EUR
Retailer 6€326 EUR
Retailer 1€342 EUR
Retailer 7€359 EUR
Retailer 8€367 EUR
Retailer 2€620 EUR
Retailer 4€674 EUR
Retailer 5€674 EUR
Retailer 10€979 EUR

4 data points across 10 retailers

10 retailers€230 EUR to €1,114 EUR

A
Cheapest Retailer
-
€230 EUR
HK$2,000 HKD
A
Retailer 2
-
€326 EUR
£286 GBP
View
A
Retailer 3
-
€342 EUR
View
B+
Retailer 4
-
€359 EUR
£315 GBP
View
B+
Retailer 5
-
€367 EUR
$408 USD
View
B
Retailer 6
-
€620 EUR
$690 USD
View
B
Retailer 7
-
€674 EUR
SGD 1,013 SGD
View
B
Retailer 8
-
€674 EUR
$750 USD
View
B
Retailer 9
-
€979 EUR
£858 GBP
View
Most Expensive
B
Brilliant Earth
22260958A · Oct 29
€1,114 EUR
$1,240 USD
View
9 more retailers have this diamond
Prices start from €230 EURSave up to €884 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
€230 EUR