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Round|Lab Grown|IGI

1.80ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG779641877

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779641877

Diamond specifications and retailer prices

From $1,050 AUD
$738 USD
As of October 29, 2026
Save $6,052 AUD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $7,103 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.8ct lab-grown round diamond

This 1.8ct 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 LG779641877 or 779641877. Listed at 24 retailers as of October 29, 2026, with prices from $1,050 to $7,103, a $6,052 spread on the same certified stone. Brilliant Earth lists it at $7,103. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779641877
Dimensions7.77 × 7.82 × 4.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
7.77 mm7.82 mm1.80 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779641877
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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: Oct 29
Current: $7,103 AUD|Low: $1,009 AUD|High: $7,103 AUD|Avg: $2,508 AUD|+0.2%
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
October 30, 2026
Retailer 19$1,050 AUD
Retailer 8$1,143 AUD
Retailer 10$1,176 AUD
Retailer 4$1,218 AUD
Retailer 11$1,218 AUD
Retailer 15$1,473 AUD
Retailer 7$1,574 AUD
Retailer 13$1,940 AUD
Retailer 2$1,949 AUD
Retailer 5$1,973 AUD
Retailer 14$2,240 AUD
Retailer 18$3,002 AUD
Retailer 16$3,032 AUD
Retailer 9$3,426 AUD
Retailer 17$3,936 AUD
Retailer 3$3,954 AUD
Retailer 6$4,097 AUD
Retailer 12$4,810 AUD
Brilliant Earth$7,103 AUD

45 data points across 19 retailers

24 retailers$1,050 AUD to $7,103 AUD

A
Cheapest Retailer
-
$1,050 AUD
$738 USD
A
Retailer 2
-
$1,143 AUD
$803 USD
View
A
Retailer 3
-
$1,176 AUD
$826 USD
View
Final sale: no returns
Retailer 4
-
$1,218 AUD
$856 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,218 AUD
$856 USD
View
A
Retailer 6
-
$1,421 AUD
HK$7,800 HKD
View
A
Retailer 7
-
$1,473 AUD
$1,035 USD
View
A
Retailer 8
-
$1,574 AUD
$1,106 USD
View
B+
Retailer 9
-
$1,907 AUD
$1,340 USD
View
B+
Retailer 10
-
$1,940 AUD
€1,298 EUR
View
B+
Retailer 11
-
$1,949 AUD
£1,078 GBP
View
B+
Retailer 12
-
$1,973 AUD
$1,386 USD
View
B+
Retailer 13
-
$2,240 AUD
ZAR 25,422 ZAR
View
B+
Retailer 14
-
$3,002 AUD
$2,109 USD
View
Retailer 15
-
$3,032 AUD
View
Price last confirmed 8 days ago
B
Retailer 16
-
$3,426 AUD
$2,407 USD
View
B
Retailer 17
-
$3,936 AUD
$2,765 USD
View
B
Retailer 18
-
$3,954 AUD
$2,778 USD
View
B
Retailer 19
-
$4,097 AUD
SGD 3,890 SGD
View
B
Retailer 20
-
$4,119 AUD
$2,894 USD
View
B
Retailer 21
-
$4,143 AUD
$2,910 USD
View
B
Retailer 22
-
$4,201 AUD
$2,951 USD
View
B
Retailer 23
-
$4,810 AUD
£2,661 GBP
View
Most Expensive
B
Brilliant Earth
19067109A · Oct 29
$7,103 AUD
$4,990 USD
View
23 more retailers have this diamond
Prices start from $1,050 AUDSave up to $6,052 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
1.80ct Round
$1,050 AUD