CaratHunter
Plans
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 $275 CAD
$197 USD
As of October 29, 2026
Save $1,320 CAD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,595 CAD at MOH London · As of October 25, 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 October 25, 2026, with prices from $275 to $1,595, a $1,320 spread on the same certified stone. MOH London lists it at $1,595. 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

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: $1,595 CAD|Low: $264 CAD|High: $1,613 CAD|Avg: $810 CAD|+0.1%
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
October 29, 2026
Retailer 10$275 CAD
Retailer 3$307 CAD
Retailer 15$318 CAD
Retailer 4$341 CAD
Retailer 12$341 CAD
Retailer 13$592 CAD
Retailer 2$626 CAD
Retailer 5$800 CAD
Retailer 14$805 CAD
Retailer 11$1,090 CAD
Retailer 16$1,095 CAD
Retailer 9$1,099 CAD
Retailer 6$1,112 CAD
Retailer 8$1,246 CAD
Retailer 7$1,463 CAD
MOH London$1,595 CAD

18 data points across 16 retailers

14 retailers$275 CAD to $1,595 CAD

A
Cheapest Retailer
-
$275 CAD
$197 USD
A
Retailer 2
-
$307 CAD
$220 USD
View
Final sale: no returns
A
Retailer 3
-
$318 CAD
$228 USD
View
A
Retailer 4
-
$341 CAD
$244 USD
View
A
Retailer 5
-
$341 CAD
$244 USD
View
B+
Retailer 6
-
$592 CAD
$424 USD
View
A
Retailer 7
-
$626 CAD
€427 EUR
View
A
Retailer 8
-
$800 CAD
$573 USD
View
A
Retailer 9
-
$805 CAD
$576 USD
View
A
Retailer 10
-
$1,090 CAD
$780 USD
View
A
Retailer 11
-
$1,095 CAD
$784 USD
View
A
Retailer 12
-
$1,099 CAD
$787 USD
View
A
Retailer 13
-
$1,112 CAD
SGD 1,076 SGD
View
Most Expensive
A
MOH London
LG770653207 · Oct 25
$1,595 CAD
£899 GBP
View
13 more retailers have this diamond
Prices start from $275 CADSave up to $1,320 CAD

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
$275 CAD