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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 $380 AUD
$267 USD
As of November 1, 2026
Save $2,296 AUD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,676 AUD 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 $380 to $2,676, a $2,296 spread on the same certified stone. Brilliant Earth lists it at $2,676. 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: $2,676 AUD|Low: $380 AUD|High: $2,676 AUD|Avg: $1,075 AUD
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$380 AUD
Retailer 8$441 AUD
Retailer 7$471 AUD
Retailer 16$698 AUD
Retailer 13$776 AUD
Retailer 4$784 AUD
Retailer 12$814 AUD
Retailer 17$868 AUD
Retailer 2$903 AUD
Retailer 18$981 AUD
Retailer 5$1,097 AUD
Retailer 14$1,196 AUD
Retailer 6$1,518 AUD
Retailer 9$1,590 AUD
Retailer 11$1,701 AUD
Retailer 3$1,817 AUD
Retailer 10$1,942 AUD
Retailer 19$2,118 AUD
Brilliant Earth$2,676 AUD

43 data points across 19 retailers

23 retailers$380 AUD to $2,676 AUD

A
Cheapest Retailer
-
$380 AUD
$267 USD
A
Retailer 2
-
$441 AUD
$310 USD
View
A
Retailer 3
-
$471 AUD
$331 USD
View
Retailer 4
-
$483 AUD
$339 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$698 AUD
$490 USD
View
A
Retailer 6
-
$776 AUD
€519 EUR
View
B+
Retailer 7
-
$784 AUD
$551 USD
View
A
Retailer 8
-
$814 AUD
ZAR 9,234 ZAR
View
A
Retailer 9
-
$868 AUD
$610 USD
View
A
Retailer 10
-
$903 AUD
£499 GBP
View
A
Retailer 11
-
$981 AUD
$689 USD
View
B+
Retailer 12
-
$1,097 AUD
View
Retailer 13
-
$1,185 AUD
View
Price last confirmed 123 days ago
B+
Retailer 14
-
$1,196 AUD
$840 USD
View
Retailer 15
-
$1,352 AUD
$950 USD
View
Price last confirmed 47 days ago
B+
Retailer 16
-
$1,518 AUD
$1,066 USD
View
B
Retailer 17
-
$1,590 AUD
$1,117 USD
View
Retailer 18
-
$1,701 AUD
$1,195 USD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$1,731 AUD
$1,216 USD
View
B
Retailer 20
-
$1,817 AUD
$1,276 USD
View
Retailer 21
-
$1,942 AUD
£1,074 GBP
View
Price last confirmed 12 days ago
B
Retailer 22
-
$2,118 AUD
$1,488 USD
View
Most Expensive
B
Brilliant Earth
18338005A · Oct 28
$2,676 AUD
$1,880 USD
View
22 more retailers have this diamond
Prices start from $380 AUDSave up to $2,296 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
$380 AUD