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 $243 USD
As of October 27, 2026
Save $1,007 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,250 USD 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 27, 2026, with prices from $243 to $1,250, a $1,007 spread on the same certified stone. Brilliant Earth lists it at $1,250. 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
Color
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

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: Oct 27
Current: $1,250 USD|Low: $233 USD|High: $1,290 USD|Avg: $728 USD|-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$243 USD
Retailer 15$272 USD
Retailer 11$301 USD
Retailer 13$301 USD
Retailer 7$505 USD
Retailer 12$506 USD
Retailer 3$591 USD
Retailer 14$637 USD
Retailer 9$757 USD
Retailer 6$834 USD
Retailer 8$995 USD
Retailer 4$1,021 USD
Retailer 5$1,173 USD
Retailer 2$1,214 USD
Brilliant Earth$1,250 USD

19 data points across 15 retailers

14 retailers$243 USD to $1,250 USD

A
Cheapest Retailer
-
$243 USD
B+
Retailer 2
-
$272 USD
View
Final sale: no returns
A
Retailer 3
-
$282 USD
View
A
Retailer 4
-
$301 USD
View
A
Retailer 5
-
$301 USD
View
B+
Retailer 6
-
$506 USD
View
B+
Retailer 7
-
$591 USD
View
B+
Retailer 8
-
$637 USD
View
B+
Retailer 9
-
$757 USD
View
B
Retailer 10
-
$969 USD
View
Retailer 11
-
$995 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$1,021 USD
View
B
Retailer 13
-
$1,214 USD
£956 GBP
View
Most Expensive
B
Brilliant Earth
15784170A · Oct 28
$1,250 USD
View
13 more retailers have this diamond
Prices start from $243 USDSave up to $1,007 USD

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
$243 USD