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Round|Lab Grown|IGI

1.51ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG816620204

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816620204

Diamond specifications and retailer prices

From $381 NZD
As of November 5, 2026
Save $1,701 NZD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,081 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 LG816620204 or 816620204. Listed at 20 retailers as of November 5, 2026, with prices from $381 to $2,081, a $1,701 spread on the same certified stone. Brilliant Earth lists it at $2,081. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816620204
Dimensions7.51 × 7.48 × 4.44 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm7.48 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816620204
Side View
Table 61.0%Crown 32.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 59.3%

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 5
Current: $2,081 NZD|Low: $368 NZD|High: $2,668 NZD|Avg: $1,088 NZD|-22.0%
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 8$381 NZD
Retailer 6$425 NZD
Retailer 3$441 NZD
Retailer 5$471 NZD
Retailer 14$471 NZD
Retailer 15$799 NZD
Retailer 12$809 NZD
Retailer 11$813 NZD
Retailer 13$1,101 NZD
Retailer 10$1,258 NZD
Retailer 9$1,290 NZD
Retailer 16$1,516 NZD
Retailer 7$1,530 NZD
Retailer 4$1,610 NZD
Retailer 2$1,884 NZD
Brilliant Earth$2,081 NZD

37 data points across 16 retailers

20 retailers$381 NZD to $2,081 NZD

Retailer 1
-
$379 NZD
Price last confirmed 48 days ago
A
Retailer 2
-
$381 NZD
View
A
Retailer 3
-
$425 NZD
View
Final sale: no returns
A
Retailer 4
-
$441 NZD
View
Retailer 5
-
$463 NZD
View
Price last confirmed 47 days ago
A
Retailer 6
-
$471 NZD
View
Retailer 7
-
$471 NZD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$799 NZD
View
A
Retailer 9
-
$809 NZD
View
A
Retailer 10
-
$813 NZD
View
Retailer 11
-
$1,101 NZD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$1,258 NZD
View
B+
Retailer 13
-
$1,290 NZD
View
Retailer 14
-
$1,370 NZD
View
Price last confirmed 18 days ago
Retailer 15
-
$1,509 NZD
View
Price last confirmed 45 days ago
B+
Retailer 16
-
$1,516 NZD
View
B+
Retailer 17
-
$1,530 NZD
View
B+
Retailer 18
-
$1,610 NZD
View
B+
Retailer 19
-
$1,884 NZD
View
Most Expensive
B
Brilliant Earth
21492018A · Nov 5
$2,081 NZD
$1,170 USD
View
19 more retailers have this diamond
Prices start from $381 NZDSave up to $1,701 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
$381 NZD