Radiant|Lab Grown|IGI

1.70ct I VS1 Radiant Lab Grown Diamond

EX • I/VS1 • IGI LG551292836

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

Certificate IGI LG551292836

Diamond specifications and retailer prices

From $1,906 USD
As of November 1, 2026
Save $2,329 USD (55%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,875 USD at The Diamond Guys · As of October 28, 2026
View at The Diamond Guys

About this 1.7ct lab-grown radiant diamond

This 1.7ct lab-grown radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG551292836 or 551292836. Listed at 3 retailers as of November 1, 2026, with a 122% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551292836
Dimensions8.29 × 5.75 × 3.91 mm
L/W Ratio1.44
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
8.29 mm5.75 mm1.70 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551292836
Side View
Table 64.0%Crown 45.2°Girdle: Slightly ThickPavilion 30.4°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,235 USD|Low: $1,395 USD|High: $5,875 USD|Avg: $2,836 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
The Diamond Guys
November 1, 2026
Retailer 4$1,395 USD
Retailer 3$1,480 USD
Retailer 2$1,906 USD
Retailer 1$4,235 USD
The Diamond Guys$5,875 USD

2 data points across 5 retailers

3 retailers$1,906 USD to $4,235 USD

B
Cheapest Retailer
-
$1,906 USD
B
Retailer 2
-
$4,235 USD
£3,335 GBP
View
Most Expensive
The Diamond Guys
1996342837 · Oct 28
$5,875 USD
View
Price under review
2 more retailers have this diamond
Prices start from $1,906 USDSave up to $2,329 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.

B
1.70ct Radiant
$1,906 USD