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Round|Lab Grown|IGI

1.91ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG630443173

Shape and cutting style on the report: Round brilliant

Certificate IGI LG630443173

Diamond specifications and retailer prices

From $477 AUD
$335 USD
As of November 1, 2026
Save $1,638 AUD (77%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,488 AUD at Brilliant Earth · As of October 4, 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 LG630443173 or 630443173. Listed at 26 retailers as of November 1, 2026, with a 344% 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 angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG630443173
Dimensions7.89 × 7.95 × 4.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.89 mm7.95 mm1.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG630443173
Side View
Table 56.0%Crown 35.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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: $3,488 AUD|Low: $417 AUD|High: $3,488 AUD|Avg: $1,290 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
Retailer 20
Retailer 21
November 2, 2026
Retailer 10$434 AUD
Retailer 4$477 AUD
Retailer 12$538 AUD
Retailer 5$583 AUD
Retailer 21$709 AUD
Retailer 16$712 AUD
Retailer 15$861 AUD
Retailer 19$907 AUD
Retailer 3$920 AUD
Retailer 2$934 AUD
Retailer 17$970 AUD
Retailer 6$997 AUD
Retailer 18$1,227 AUD
Retailer 20$1,360 AUD
Retailer 8$1,689 AUD
Retailer 11$1,723 AUD
Retailer 14$1,761 AUD
Retailer 7$1,764 AUD
Retailer 9$2,030 AUD
Retailer 13$2,115 AUD
Brilliant Earth$3,488 AUD

40 data points across 21 retailers

26 retailers$477 AUD to $2,115 AUD

Retailer 1
-
$434 AUD
$305 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$477 AUD
$335 USD
View
Final sale: no returns
Retailer 3
-
$504 AUD
$354 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$532 AUD
$374 USD
View
Price last confirmed 47 days ago
Retailer 5
-
$538 AUD
$378 USD
View
Price last confirmed 16 days ago
Retailer 6
-
$538 AUD
$378 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$583 AUD
HK$3,200 HKD
View
B+
Retailer 8
-
$709 AUD
$498 USD
View
A
Retailer 9
-
$712 AUD
$500 USD
View
A
Retailer 10
-
$861 AUD
€576 EUR
View
A
Retailer 11
-
$907 AUD
ZAR 10,289 ZAR
View
A
Retailer 12
-
$920 AUD
$646 USD
View
A
Retailer 13
-
$934 AUD
£516 GBP
View
A
Retailer 14
-
$970 AUD
View
B+
Retailer 15
-
$997 AUD
$700 USD
View
B+
Retailer 16
-
$1,227 AUD
View
B+
Retailer 17
-
$1,360 AUD
$955 USD
View
B
Retailer 18
-
$1,689 AUD
SGD 1,603 SGD
View
Retailer 19
-
$1,723 AUD
$1,210 USD
View
Price last confirmed 25 days ago
Retailer 20
-
$1,731 AUD
$1,216 USD
View
Price last confirmed 14 days ago
Retailer 21
-
$1,761 AUD
View
Price last confirmed 27 days ago
B
Retailer 22
-
$1,764 AUD
$1,239 USD
View
B
Retailer 23
-
$1,855 AUD
$1,303 USD
View
B
Retailer 24
-
$2,030 AUD
$1,426 USD
View
B
Retailer 25
-
$2,115 AUD
£1,170 GBP
View
Most Expensive
Brilliant Earth
9989183A · Oct 4
$3,488 AUD
$2,450 USD
View
Price last confirmed 28 days ago
25 more retailers have this diamond
Prices start from $477 AUDSave up to $1,638 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
$477 AUD