Radiant|Lab Grown|IGI

1.91ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG750557868

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

Certificate IGI LG750557868

Diamond specifications and retailer prices

From $250 USD
As of October 27, 2026
Save $1,090 USD (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,340 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.91ct lab-grown radiant diamond

This 1.91ct 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 top-tier cut grade and certified by IGI LG750557868 or 750557868. Listed at 19 retailers as of October 27, 2026, with prices from $250 to $1,340, a $1,090 spread on the same certified stone. Brilliant Earth lists it at $1,340. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750557868
Dimensions8.45 × 6.18 × 4.25 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
8.45 mm6.18 mm1.91 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750557868
Side View
Table 65.0%Crown 41.1°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 68.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $1,340 USD|Low: $248 USD|High: $1,440 USD|Avg: $719 USD|-6.9%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
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Retailer 18
Retailer 19
November 1, 2026
Retailer 5$250 USD
Retailer 6$280 USD
Retailer 18$290 USD
Retailer 9$321 USD
Retailer 11$321 USD
Retailer 16$418 USD
Retailer 17$470 USD
Retailer 2$535 USD
Retailer 13$574 USD
Retailer 15$590 USD
Retailer 4$723 USD
Retailer 19$750 USD
Retailer 14$783 USD
Retailer 10$1,031 USD
Retailer 7$1,048 USD
Retailer 8$1,175 USD
Retailer 3$1,204 USD
Retailer 12$1,242 USD
Brilliant Earth$1,340 USD

32 data points across 19 retailers

19 retailers$250 USD to $1,340 USD

A
Cheapest Retailer
-
$250 USD
A
Retailer 2
-
$280 USD
View
Final sale: no returns
A
Retailer 3
-
$290 USD
View
Retailer 4
-
$321 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$321 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$418 USD
View
A
Retailer 7
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$470 USD
View
A
Retailer 8
-
$535 USD
ZAR 8,648 ZAR
View
A
Retailer 9
-
$574 USD
€547 EUR
View
A
Retailer 10
-
$590 USD
View
A
Retailer 11
-
$723 USD
A$1,112 AUD
View
A
Retailer 12
-
$750 USD
View
A
Retailer 13
-
$783 USD
View
Retailer 14
-
$1,031 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
$1,048 USD
View
B+
Retailer 16
-
$1,175 USD
View
B
Retailer 17
-
$1,204 USD
£948 GBP
View
B+
Retailer 18
-
$1,242 USD
£978 GBP
View
Most Expensive
B+
Brilliant Earth
16835205A · Oct 31
$1,340 USD
View
18 more retailers have this diamond
Prices start from $250 USDSave up to $1,090 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
1.91ct Radiant
$250 USD