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Radiant|Lab Grown|IGI

1.78ct H VS2 Radiant Lab Grown Diamond

VG • H/VS2 • IGI LG733563519

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG733563519

Diamond specifications and retailer prices

From $431 NZD
$243 USD
As of October 30, 2026
Save $1,787 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,218 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.78ct lab-grown radiant diamond

This 1.78ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG733563519 or 733563519. Listed at 14 retailers as of October 28, 2026, with prices from $431 to $2,218, a $1,787 spread on the same certified stone. Brilliant Earth lists it at $2,218. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
H
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733563519
Dimensions8.06 × 5.90 × 4.04 mm
L/W Ratio1.37
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.06 mm5.90 mm1.78 ctH / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733563519
Side View
Table 70.0%Crown 40.2°Girdle: STK-THKPavilion 33°Culet: NoneDepth 68.5%

Caratlytics Score

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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: Oct 30
Current: $2,218 NZD|Low: $413 NZD|High: $2,289 NZD|Avg: $1,292 NZD|-3.1%
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
October 29, 2026
Retailer 10$431 NZD
Retailer 15$483 NZD
Retailer 11$534 NZD
Retailer 13$534 NZD
Retailer 7$896 NZD
Retailer 12$898 NZD
Retailer 3$1,049 NZD
Retailer 14$1,130 NZD
Retailer 9$1,343 NZD
Retailer 6$1,480 NZD
Retailer 8$1,765 NZD
Retailer 4$1,811 NZD
Retailer 5$2,082 NZD
Retailer 2$2,154 NZD
Brilliant Earth$2,218 NZD

19 data points across 15 retailers

14 retailers$431 NZD to $2,218 NZD

A
Cheapest Retailer
-
$431 NZD
$243 USD
B+
Retailer 2
-
$483 NZD
$272 USD
View
Final sale: no returns
A
Retailer 3
-
$500 NZD
$282 USD
View
A
Retailer 4
-
$534 NZD
$301 USD
View
A
Retailer 5
-
$534 NZD
$301 USD
View
B+
Retailer 6
-
$898 NZD
$506 USD
View
B+
Retailer 7
-
$1,049 NZD
$591 USD
View
B+
Retailer 8
-
$1,130 NZD
$637 USD
View
B+
Retailer 9
-
$1,343 NZD
$757 USD
View
B
Retailer 10
-
$1,719 NZD
$969 USD
View
Retailer 11
-
$1,765 NZD
$995 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$1,811 NZD
$1,021 USD
View
B
Retailer 13
-
$2,154 NZD
£956 GBP
View
Most Expensive
B
Brilliant Earth
15784170A · Oct 28
$2,218 NZD
$1,250 USD
View
13 more retailers have this diamond
Prices start from $431 NZDSave up to $1,787 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
1.78ct Radiant
$431 NZD