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Round|Lab Grown|IGI

1.51ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG754510408

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754510408

Diamond specifications and retailer prices

From $338 NZD
As of November 5, 2026
Save $2,135 NZD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,473 NZD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG754510408 or 754510408. Listed at 16 retailers as of November 5, 2026, with prices from $338 to $2,473, a $2,135 spread on the same certified stone. Brilliant Earth lists it at $2,473. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510408
Dimensions7.40 × 7.34 × 4.52 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
7.40 mm7.34 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754510408
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,473 NZD|Low: $327 NZD|High: $2,597 NZD|Avg: $1,007 NZD|-4.8%
Brilliant Earth
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
November 5, 2026
Retailer 13$338 NZD
Retailer 5$391 NZD
Retailer 14$418 NZD
Retailer 8$429 NZD
Retailer 9$651 NZD
Retailer 12$722 NZD
Retailer 6$735 NZD
Retailer 11$770 NZD
Retailer 3$784 NZD
Retailer 4$879 NZD
Retailer 10$1,299 NZD
Retailer 15$1,347 NZD
Retailer 16$1,352 NZD
Retailer 7$1,441 NZD
Retailer 2$1,951 NZD
Brilliant Earth$2,473 NZD

42 data points across 16 retailers

16 retailers$338 NZD to $2,473 NZD

A
Cheapest Retailer
-
$338 NZD
A
Retailer 2
-
$391 NZD
View
A
Retailer 3
-
$418 NZD
View
Retailer 4
-
$429 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$651 NZD
View
A
Retailer 6
-
$722 NZD
View
B+
Retailer 7
-
$735 NZD
View
A
Retailer 8
-
$770 NZD
View
A
Retailer 9
-
$784 NZD
View
A
Retailer 10
-
$879 NZD
View
B+
Retailer 11
-
$1,299 NZD
View
B+
Retailer 12
-
$1,347 NZD
View
B+
Retailer 13
-
$1,352 NZD
View
B+
Retailer 14
-
$1,441 NZD
View
B+
Retailer 15
-
$1,951 NZD
View
Most Expensive
B
Brilliant Earth
18094755A · Nov 5
$2,473 NZD
$1,390 USD
View
15 more retailers have this diamond
Prices start from $338 NZDSave up to $2,135 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
$338 NZD