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Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG803675180

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803675180

Diamond specifications and retailer prices

From $650 NZD
$365 USD
As of October 28, 2026
Save $5,208 NZD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,858 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct 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 LG803675180 or 803675180. Listed at 22 retailers as of October 28, 2026, with prices from $650 to $5,858, a $5,208 spread on the same certified stone. Brilliant Earth lists it at $5,858. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803675180
Dimensions7.84 × 7.77 × 4.81 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
7.84 mm7.77 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803675180
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $5,858 NZD|Low: $650 NZD|High: $5,858 NZD|Avg: $2,056 NZD
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
October 30, 2026
Retailer 7$650 NZD
Retailer 4$1,015 NZD
Retailer 13$1,015 NZD
Retailer 10$1,168 NZD
Retailer 12$1,238 NZD
Retailer 2$1,285 NZD
Retailer 5$1,334 NZD
Retailer 9$1,630 NZD
Retailer 11$1,679 NZD
Retailer 16$2,113 NZD
Retailer 17$2,156 NZD
Retailer 8$2,395 NZD
Retailer 3$2,525 NZD
Retailer 6$2,843 NZD
Retailer 14$2,892 NZD
Retailer 15$4,585 NZD
Brilliant Earth$5,858 NZD

38 data points across 17 retailers

22 retailers$650 NZD to $5,858 NZD

Retailer 1
-
$580 NZD
$326 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$650 NZD
$365 USD
View
Final sale: no returns
Retailer 3
-
$721 NZD
$405 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$721 NZD
$405 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$1,015 NZD
$570 USD
View
A
Retailer 6
-
$1,015 NZD
$570 USD
View
A
Retailer 7
-
$1,168 NZD
€625 EUR
View
A
Retailer 8
-
$1,238 NZD
ZAR 11,234 ZAR
View
A
Retailer 9
-
$1,285 NZD
£568 GBP
View
A
Retailer 10
-
$1,334 NZD
$749 USD
View
A
Retailer 11
-
$1,630 NZD
$915 USD
View
A
Retailer 12
-
$1,679 NZD
A$1,451 AUD
View
B+
Retailer 13
-
$2,113 NZD
$1,187 USD
View
B+
Retailer 14
-
$2,156 NZD
$1,211 USD
View
Retailer 15
-
$2,316 NZD
$1,301 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$2,395 NZD
$1,345 USD
View
B+
Retailer 17
-
$2,525 NZD
$1,418 USD
View
B+
Retailer 18
-
$2,722 NZD
$1,529 USD
View
B+
Retailer 19
-
$2,843 NZD
$1,597 USD
View
B+
Retailer 20
-
$2,892 NZD
£1,279 GBP
View
B
Retailer 21
-
$4,585 NZD
$2,575 USD
View
Most Expensive
B
Brilliant Earth
20269441A · Oct 29
$5,858 NZD
$3,290 USD
View
21 more retailers have this diamond
Prices start from $650 NZDSave up to $5,208 NZD

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
1.81ct Round
$650 NZD