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Round|Lab Grown|IGI

1.51ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG555273580

Shape and cutting style on the report: Round brilliant

Certificate IGI LG555273580

Diamond specifications and retailer prices

From $656 NZD
As of November 3, 2026
Save $2,518 NZD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,174 NZD at MOH London · As of November 5, 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 LG555273580 or 555273580. Listed at 16 retailers as of November 3, 2026, with prices from $656 to $3,174, a $2,518 spread on the same certified stone. MOH London lists it at $3,174. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555273580
Dimensions7.27 × 7.24 × 4.58 mm
L/W Ratio1.00
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
7.27 mm7.24 mm1.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555273580
Side View
Table 57.5%Crown 36.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.1%

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: $3,174 NZD|Low: $630 NZD|High: $3,222 NZD|Avg: $1,545 NZD|-1.3%
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
Retailer 17
November 5, 2026
Retailer 14$656 NZD
Retailer 5$734 NZD
Retailer 3$761 NZD
Retailer 6$814 NZD
Retailer 15$814 NZD
Retailer 11$1,082 NZD
Retailer 10$1,144 NZD
Retailer 8$1,242 NZD
Retailer 17$1,263 NZD
Retailer 2$1,267 NZD
Retailer 16$1,300 NZD
Retailer 12$1,403 NZD
Retailer 13$2,388 NZD
Retailer 4$2,618 NZD
Retailer 9$2,688 NZD
Retailer 7$2,947 NZD
MOH London$3,174 NZD

35 data points across 17 retailers

16 retailers$656 NZD to $3,174 NZD

A
Cheapest Retailer
-
$656 NZD
A
Retailer 2
-
$734 NZD
View
Final sale: no returns
A
Retailer 3
-
$761 NZD
View
A
Retailer 4
-
$814 NZD
View
Retailer 5
-
$814 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$1,082 NZD
View
A
Retailer 7
-
$1,144 NZD
View
B+
Retailer 8
-
$1,242 NZD
View
B+
Retailer 9
-
$1,263 NZD
View
B+
Retailer 10
-
$1,267 NZD
View
B+
Retailer 11
-
$1,300 NZD
View
B+
Retailer 12
-
$1,403 NZD
View
B
Retailer 13
-
$2,388 NZD
View
B
Retailer 14
-
$2,618 NZD
View
B
Retailer 15
-
$2,688 NZD
View
Most Expensive
B
MOH London
LG555273580 · Nov 5
$3,174 NZD
£1,409 GBP
View
15 more retailers have this diamond
Prices start from $656 NZDSave up to $2,518 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