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Round|Lab Grown|IGI

1.91ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG781609848

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781609848

Diamond specifications and retailer prices

From $341 SGD
$267 USD
As of November 1, 2026
Save $2,062 SGD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,403 SGD at Brilliant Earth · As of October 28, 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 LG781609848 or 781609848. Listed at 23 retailers as of October 28, 2026, with prices from $341 to $2,403, a $2,062 spread on the same certified stone. Brilliant Earth lists it at $2,403. 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 angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781609848
Dimensions8.05 × 7.99 × 4.88 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
8.05 mm7.99 mm1.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781609848
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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: $2,403 SGD|Low: $341 SGD|High: $2,403 SGD|Avg: $965 SGD
Brilliant Earth
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
November 2, 2026
Retailer 15$341 SGD
Retailer 8$396 SGD
Retailer 7$423 SGD
Retailer 16$626 SGD
Retailer 2$699 SGD
Retailer 4$704 SGD
Retailer 13$731 SGD
Retailer 17$780 SGD
Retailer 12$810 SGD
Retailer 18$881 SGD
Retailer 5$986 SGD
Retailer 14$1,074 SGD
Retailer 6$1,363 SGD
Retailer 9$1,428 SGD
Retailer 11$1,528 SGD
Retailer 3$1,631 SGD
Retailer 10$1,744 SGD
Retailer 19$1,902 SGD
Brilliant Earth$2,403 SGD

43 data points across 19 retailers

23 retailers$341 SGD to $2,403 SGD

A
Cheapest Retailer
-
$341 SGD
$267 USD
A
Retailer 2
-
$396 SGD
$310 USD
View
A
Retailer 3
-
$423 SGD
$331 USD
View
Retailer 4
-
$433 SGD
$339 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$626 SGD
$490 USD
View
A
Retailer 6
-
$699 SGD
€521 EUR
View
B+
Retailer 7
-
$704 SGD
$551 USD
View
A
Retailer 8
-
$731 SGD
ZAR 9,234 ZAR
View
A
Retailer 9
-
$780 SGD
$610 USD
View
A
Retailer 10
-
$810 SGD
£499 GBP
View
A
Retailer 11
-
$881 SGD
$689 USD
View
B+
Retailer 12
-
$986 SGD
A$1,186 AUD
View
Retailer 13
-
$1,064 SGD
A$1,280 AUD
View
Price last confirmed 123 days ago
B+
Retailer 14
-
$1,074 SGD
$840 USD
View
Retailer 15
-
$1,214 SGD
$950 USD
View
Price last confirmed 47 days ago
B+
Retailer 16
-
$1,363 SGD
$1,066 USD
View
B
Retailer 17
-
$1,428 SGD
$1,117 USD
View
Retailer 18
-
$1,528 SGD
$1,195 USD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$1,555 SGD
$1,216 USD
View
B
Retailer 20
-
$1,631 SGD
$1,276 USD
View
Retailer 21
-
$1,744 SGD
£1,074 GBP
View
Price last confirmed 12 days ago
B
Retailer 22
-
$1,902 SGD
$1,488 USD
View
Most Expensive
B
Brilliant Earth
18338005A · Oct 28
$2,403 SGD
$1,880 USD
View
22 more retailers have this diamond
Prices start from $341 SGDSave up to $2,062 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
$341 SGD