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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 $334 SGD
$261 USD
As of November 1, 2026
Save $1,442 SGD (81%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,557 SGD 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

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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: Nov 1
Current: $790 SGD|Low: $331 SGD|High: $1,776 SGD|Avg: $840 SGD|+5.3%
Retailer 1
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 13$334 SGD
Retailer 15$372 SGD
Retailer 3$387 SGD
Retailer 6$414 SGD
Retailer 7$414 SGD
Retailer 20$639 SGD
Retailer 17$657 SGD
Retailer 8$689 SGD
Retailer 19$709 SGD
Retailer 12$714 SGD
Retailer 5$770 SGD
Retailer 1$790 SGD
Retailer 21$804 SGD
Retailer 4$878 SGD
Retailer 2$963 SGD
Retailer 10$1,099 SGD
Retailer 14$1,331 SGD
Retailer 11$1,396 SGD
Retailer 18$1,629 SGD
Retailer 16$1,659 SGD
Retailer 9$1,776 SGD

29 data points across 21 retailers

26 retailers$334 SGD to $1,776 SGD

A
Cheapest Retailer
-
$334 SGD
$261 USD
A
Retailer 2
-
$372 SGD
$291 USD
View
Final sale: no returns
A
Retailer 3
-
$387 SGD
$303 USD
View
A
Retailer 4
-
$414 SGD
$324 USD
View
Retailer 5
-
$414 SGD
$324 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$639 SGD
$500 USD
View
A
Retailer 7
-
$657 SGD
£405 GBP
View
B+
Retailer 8
-
$689 SGD
$539 USD
View
A
Retailer 9
-
$709 SGD
€528 EUR
View
A
Retailer 10
-
$714 SGD
ZAR 9,021 ZAR
View
A
Retailer 11
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$770 SGD
$602 USD
View
A
Retailer 12
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$790 SGD
£487 GBP
View
A
Retailer 13
-
$804 SGD
A$968 AUD
View
A
Retailer 14
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$878 SGD
$687 USD
View
A
Retailer 15
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$963 SGD
A$1,159 AUD
View
B+
Retailer 16
-
$1,099 SGD
$860 USD
View
B+
Retailer 17
-
$1,331 SGD
$1,041 USD
View
B+
Retailer 18
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$1,347 SGD
$1,054 USD
View
B+
Retailer 19
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$1,396 SGD
$1,092 USD
View
B
Retailer 20
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$1,538 SGD
$1,203 USD
View
Retailer 21
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$1,545 SGD
A$1,859 AUD
View
Price last confirmed 32 days ago
Retailer 22
-
$1,548 SGD
$1,211 USD
View
Price last confirmed 74 days ago
B
Retailer 23
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$1,629 SGD
$1,274 USD
View
B
Retailer 24
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$1,659 SGD
£1,022 GBP
View
B
Retailer 25
-
$1,776 SGD
$1,389 USD
View
Most Expensive
Brilliant Earth
16462177A · Oct 13
$2,557 SGD
$2,000 USD
View
Price last confirmed 19 days ago
25 more retailers have this diamond
Prices start from $334 SGDSave up to $1,442 SGD

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
$334 SGD