Radiant|Lab Grown|IGI

1.50ct H VS1 Radiant Lab Grown Diamond

VG • H/VS1 • IGI LG570375731

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

Certificate IGI LG570375731

Diamond specifications and retailer prices

From $182 USD
As of October 30, 2026
Save $991 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,173 USD at Flawless Fine Jewelry · As of November 2, 2026
View at Flawless Fine Jewelry

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG570375731 or 570375731. Listed at 17 retailers as of October 30, 2026, with prices from $182 to $1,173, a $991 spread on the same certified stone. Flawless Fine Jewelry lists it at $1,173. 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

1.50
Carat
H
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570375731
Dimensions7.73 × 5.77 × 4.00 mm
L/W Ratio1.34
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
7.73 mm5.77 mm1.50 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570375731
Side View
Table 67.5%Crown 37.7°Girdle: THN-STKPavilion 34.9°Culet: NoneDepth 69.3%

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: Oct 30
Current: $1,173 USD|Low: $140 USD|High: $1,173 USD|Avg: $445 USD
Flawless Fine Jewelry
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 1, 2026
Retailer 13$182 USD
Retailer 7$210 USD
Retailer 4$211 USD
Retailer 5$226 USD
Retailer 14$226 USD
Retailer 8$256 USD
Retailer 10$374 USD
Retailer 9$389 USD
Retailer 16$399 USD
Retailer 3$478 USD
Retailer 6$484 USD
Retailer 2$526 USD
Retailer 15$725 USD
Retailer 12$766 USD
Retailer 11$1,060 USD
Flawless Fine Jewelry$1,173 USD

30 data points across 16 retailers

17 retailers$182 USD to $1,173 USD

A
Cheapest Retailer
-
$182 USD
A
Retailer 2
-
$210 USD
View
Final sale: no returns
A
Retailer 3
-
$211 USD
View
Retailer 4
-
$226 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$226 USD
View
A
Retailer 6
-
$256 USD
HK$2,000 HKD
View
A
Retailer 7
-
$374 USD
€356 EUR
View
A
Retailer 8
-
$389 USD
ZAR 6,289 ZAR
View
B+
Retailer 9
-
$399 USD
View
B+
Retailer 10
-
$478 USD
View
B+
Retailer 11
-
$484 USD
View
A
Retailer 12
-
$526 USD
A$809 AUD
View
B+
Retailer 13
-
$633 USD
£498 GBP
View
B+
Retailer 14
-
$725 USD
View
B+
Retailer 15
-
$766 USD
View
B
Retailer 16
-
$1,060 USD
£835 GBP
View
Most Expensive
B
Flawless Fine Jewelry
1FB61E525 · Nov 2
$1,173 USD
£924 GBP
View
16 more retailers have this diamond
Prices start from $182 USDSave up to $991 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
1.50ct Radiant
$182 USD