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Round|Lab Grown|IGI

1.91ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG738504078

Shape and cutting style on the report: Round brilliant

Certificate IGI LG738504078

Diamond specifications and retailer prices

From $372 AUD
$261 USD
As of November 1, 2026
Save $1,606 AUD (81%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,847 AUD at Brilliant Earth · As of October 13, 2026
View at Brilliant Earth

About this 1.91ct lab-grown round diamond

This 1.91ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG738504078 or 738504078. Listed at 26 retailers as of November 1, 2026, with a 432% 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

1.91
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG738504078
Dimensions7.94 × 7.88 × 4.95 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.94 mm7.88 mm1.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG738504078
Side View
Table 58.0%Crown 35.7°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.5%

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: Nov 1
Current: $731 AUD|Low: $369 AUD|High: $1,977 AUD|Avg: $936 AUD|-1.2%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 13$372 AUD
Retailer 17$414 AUD
Retailer 3$431 AUD
Retailer 6$461 AUD
Retailer 7$461 AUD
Retailer 20$712 AUD
Retailer 1$731 AUD
Retailer 8$767 AUD
Retailer 12$794 AUD
Retailer 16$795 AUD
Retailer 5$857 AUD
Retailer 15$880 AUD
Retailer 21$896 AUD
Retailer 4$978 AUD
Retailer 2$1,072 AUD
Retailer 10$1,224 AUD
Retailer 14$1,482 AUD
Retailer 11$1,555 AUD
Retailer 19$1,814 AUD
Retailer 18$1,848 AUD
Retailer 9$1,977 AUD

28 data points across 21 retailers

26 retailers$372 AUD to $1,977 AUD

A
Cheapest Retailer
-
$372 AUD
$261 USD
A
Retailer 2
-
$414 AUD
$291 USD
View
Final sale: no returns
A
Retailer 3
-
$431 AUD
$303 USD
View
A
Retailer 4
-
$461 AUD
$324 USD
View
Retailer 5
-
$461 AUD
$324 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$712 AUD
$500 USD
View
A
Retailer 7
-
$731 AUD
£404 GBP
View
B+
Retailer 8
-
$767 AUD
$539 USD
View
A
Retailer 9
-
$794 AUD
€531 EUR
View
A
Retailer 10
-
$795 AUD
ZAR 9,021 ZAR
View
A
Retailer 11
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$857 AUD
$602 USD
View
A
Retailer 12
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$880 AUD
£487 GBP
View
A
Retailer 13
-
$896 AUD
View
A
Retailer 14
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$978 AUD
$687 USD
View
A
Retailer 15
-
$1,072 AUD
View
B+
Retailer 16
-
$1,224 AUD
$860 USD
View
B+
Retailer 17
-
$1,482 AUD
$1,041 USD
View
B+
Retailer 18
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$1,500 AUD
$1,054 USD
View
B+
Retailer 19
-
$1,555 AUD
$1,092 USD
View
B
Retailer 20
-
$1,713 AUD
$1,203 USD
View
Retailer 21
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$1,720 AUD
View
Price last confirmed 32 days ago
Retailer 22
-
$1,723 AUD
$1,211 USD
View
Price last confirmed 74 days ago
B
Retailer 23
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$1,814 AUD
$1,274 USD
View
B
Retailer 24
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$1,848 AUD
£1,022 GBP
View
B
Retailer 25
-
$1,977 AUD
$1,389 USD
View
Most Expensive
Brilliant Earth
16462177A · Oct 13
$2,847 AUD
$2,000 USD
View
Price last confirmed 19 days ago
25 more retailers have this diamond
Prices start from $372 AUDSave up to $1,606 AUD

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 Round
$372 AUD