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Round|Lab Grown|IGI

1.51ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG555273644

Shape and cutting style on the report: Round brilliant

Certificate IGI LG555273644

Diamond specifications and retailer prices

From $656 NZD
As of November 3, 2026
Save $2,031 NZD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,186 NZD 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG555273644 or 555273644. Listed at 15 retailers as of November 3, 2026, with a 309% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555273644
Dimensions7.37 × 7.33 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.37 mm7.33 mm1.51 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555273644
Side View
Table 56.5%Crown 35°GirdlePavilion 40.2°Culet: NoneDepth 61.3%

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: Nov 3
Current: $3,186 NZD|Low: $523 NZD|High: $3,222 NZD|Avg: $1,494 NZD|-1.0%
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
November 4, 2026
Retailer 11$656 NZD
Retailer 4$734 NZD
Retailer 13$761 NZD
Retailer 3$814 NZD
Retailer 12$814 NZD
Retailer 8$1,082 NZD
Retailer 6$1,242 NZD
Retailer 15$1,263 NZD
Retailer 2$1,267 NZD
Retailer 14$1,300 NZD
Retailer 9$1,403 NZD
Retailer 10$2,388 NZD
Retailer 5$2,618 NZD
Retailer 7$2,688 NZD
MOH London$3,186 NZD

37 data points across 15 retailers

15 retailers$656 NZD to $2,688 NZD

A
Cheapest Retailer
-
$656 NZD
A
Retailer 2
-
$734 NZD
View
Final sale: no returns
A
Retailer 3
-
$761 NZD
View
Retailer 4
-
$814 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$814 NZD
View
A
Retailer 6
-
$1,082 NZD
View
B+
Retailer 7
-
$1,242 NZD
View
B+
Retailer 8
-
$1,263 NZD
View
B+
Retailer 9
-
$1,267 NZD
View
B+
Retailer 10
-
$1,300 NZD
View
B+
Retailer 11
-
$1,403 NZD
View
B
Retailer 12
-
$2,388 NZD
View
B
Retailer 13
-
$2,618 NZD
View
B
Retailer 14
-
$2,688 NZD
View
Most Expensive
MOH London
LG555273644 · Oct 26
$3,186 NZD
£1,414 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $656 NZDSave up to $2,031 NZD

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
$656 NZD