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Round|Lab Grown|IGI

1.51ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG555273800

Shape and cutting style on the report: Round brilliant

Certificate IGI LG555273800

Diamond specifications and retailer prices

From $637 NZD
As of November 3, 2026
Save $2,445 NZD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,082 NZD at MOH London · As of November 3, 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 LG555273800 or 555273800. Listed at 16 retailers as of November 3, 2026, with prices from $637 to $3,082, a $2,445 spread on the same certified stone. MOH London lists it at $3,082. 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 angle32.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555273800
Dimensions7.45 × 7.37 × 4.45 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
7.45 mm7.37 mm1.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555273800
Side View
Table 60.5%Crown 32.9°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.0%

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: $3,082 NZD|Low: $637 NZD|High: $3,118 NZD|Avg: $1,475 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
November 2, 2026
Retailer 10$637 NZD
Retailer 13$710 NZD
Retailer 11$789 NZD
Retailer 4$862 NZD
Retailer 7$1,056 NZD
Retailer 3$1,235 NZD
Retailer 12$1,240 NZD
Retailer 9$1,265 NZD
Retailer 2$1,359 NZD
Retailer 6$1,508 NZD
Retailer 8$2,313 NZD
Retailer 5$2,606 NZD
MOH London$3,082 NZD

24 data points across 13 retailers

16 retailers$637 NZD to $3,082 NZD

A
Cheapest Retailer
-
$637 NZD
A
Retailer 2
-
$710 NZD
View
Final sale: no returns
A
Retailer 3
-
$738 NZD
View
Retailer 4
-
$789 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$789 NZD
View
A
Retailer 6
-
$862 NZD
View
A
Retailer 7
-
$1,056 NZD
View
B+
Retailer 8
-
$1,235 NZD
View
B+
Retailer 9
-
$1,240 NZD
View
B+
Retailer 10
-
$1,265 NZD
View
B+
Retailer 11
-
$1,359 NZD
View
B+
Retailer 12
-
$1,508 NZD
View
B
Retailer 13
-
$2,313 NZD
View
B
Retailer 14
-
$2,535 NZD
View
B
Retailer 15
-
$2,606 NZD
View
Most Expensive
B
MOH London
LG555273800 · Nov 3
$3,082 NZD
£1,368 GBP
View
15 more retailers have this diamond
Prices start from $637 NZDSave up to $2,445 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
$637 NZD