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Round|Lab Grown|IGI

1.51ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG778671695

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778671695

Diamond specifications and retailer prices

From $290 AUD
$204 USD
As of October 29, 2026
Save $1,261 AUD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,551 AUD at MOH London · As of October 26, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778671695 or 778671695. Listed at 11 retailers as of October 26, 2026, with prices from $290 to $1,551, a $1,261 spread on the same certified stone. MOH London lists it at $1,551. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778671695
Dimensions7.38 × 7.34 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.34 mm1.51 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778671695
Side View
Table 58.0%Crown 34.9°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.7%

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 29
Current: $1,551 AUD|Low: $268 AUD|High: $1,623 AUD|Avg: $741 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 6$290 AUD
Retailer 8$310 AUD
Retailer 3$332 AUD
Retailer 7$608 AUD
Retailer 2$622 AUD
Retailer 4$659 AUD
Retailer 10$699 AUD
Retailer 5$725 AUD
Retailer 11$1,065 AUD
Retailer 9$1,068 AUD
MOH London$1,551 AUD

41 data points across 11 retailers

11 retailers$290 AUD to $1,551 AUD

A
Cheapest Retailer
-
$290 AUD
$204 USD
A
Retailer 2
-
$310 AUD
$218 USD
View
A
Retailer 3
-
$332 AUD
$233 USD
View
A
Retailer 4
-
$608 AUD
€407 EUR
View
B+
Retailer 5
-
$622 AUD
$437 USD
View
B+
Retailer 6
-
$659 AUD
£364 GBP
View
B+
Retailer 7
-
$699 AUD
$491 USD
View
A
Retailer 8
-
$725 AUD
$509 USD
View
B
Retailer 9
-
$1,065 AUD
$748 USD
View
B
Retailer 10
-
$1,068 AUD
$750 USD
View
Most Expensive
B
MOH London
LG778671695 · Oct 26
$1,551 AUD
£858 GBP
View
10 more retailers have this diamond
Prices start from $290 AUDSave up to $1,261 AUD

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
$290 AUD