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Round|Lab Grown|IGI

1.91ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG807673380

Shape and cutting style on the report: Round brilliant

Certificate IGI LG807673380

Diamond specifications and retailer prices

From $1,127 AUD
As of October 29, 2026
Save $3,969 AUD (78%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,096 AUD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG807673380 or 807673380. Listed at 5 retailers as of October 29, 2026, with prices from $1,127 to $5,096, a $3,969 spread on the same certified stone. Brilliant Earth lists it at $5,096. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807673380
Dimensions7.89 × 7.81 × 4.88 mm
L/W Ratio1.01
Girdle conditionFaceted
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 mm7.81 mm1.91 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807673380
Side View
Table 59.0%Crown 36.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

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: Oct 29
Current: $5,096 AUD|Low: $426 AUD|High: $5,096 AUD|Avg: $1,726 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
October 29, 2026
Retailer 5$426 AUD
Retailer 12$779 AUD
Retailer 8$925 AUD
Retailer 11$954 AUD
Retailer 3$1,032 AUD
Retailer 9$1,110 AUD
Retailer 2$1,127 AUD
Retailer 13$1,185 AUD
Retailer 10$1,835 AUD
Retailer 7$1,959 AUD
Retailer 14$2,318 AUD
Retailer 4$2,606 AUD
Retailer 6$3,040 AUD
Brilliant Earth$5,096 AUD

10 data points across 14 retailers

5 retailers$1,127 AUD to $5,096 AUD

A
Cheapest Retailer
-
$1,127 AUD
A
Retailer 2
-
$1,185 AUD
ZAR 13,453 ZAR
View
Price last confirmed 41 days ago
A
Retailer 3
-
$1,529 AUD
$1,074 USD
View
Price last confirmed 41 days ago
B+
Retailer 4
-
$1,835 AUD
$1,289 USD
View
Price last confirmed 40 days ago
Most Expensive
B
Brilliant Earth
20478079A · Oct 29
$5,096 AUD
$3,580 USD
View
4 more retailers have this diamond
Prices start from $1,127 AUDSave up to $3,969 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
$1,127 AUD