CaratHunter
Plans
Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG818658778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658778

Diamond specifications and retailer prices

From $687 NZD
$386 USD
As of October 28, 2026
Save $5,171 NZD (88%) vs most expensive(unlock to see where)
21 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 LG818658778 or 818658778. Listed at 21 retailers as of October 28, 2026, with prices from $687 to $5,858, a $5,171 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 angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658778
Dimensions7.81 × 7.87 × 4.83 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
7.81 mm7.87 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658778
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°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: $687 NZD|High: $5,858 NZD|Avg: $2,143 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 5$687 NZD
Retailer 15$1,077 NZD
Retailer 17$1,095 NZD
Retailer 2$1,151 NZD
Retailer 11$1,234 NZD
Retailer 14$1,312 NZD
Retailer 10$1,368 NZD
Retailer 6$1,737 NZD
Retailer 13$1,773 NZD
Retailer 3$2,167 NZD
Retailer 8$2,272 NZD
Retailer 7$2,530 NZD
Retailer 4$2,690 NZD
Retailer 16$2,954 NZD
Retailer 12$3,001 NZD
Retailer 9$4,611 NZD
Brilliant Earth$5,858 NZD

27 data points across 17 retailers

21 retailers$687 NZD to $5,858 NZD

Retailer 1
-
$625 NZD
$351 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$687 NZD
$386 USD
View
Final sale: no returns
Retailer 3
-
$775 NZD
$435 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$775 NZD
$435 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$1,077 NZD
$605 USD
View
A
Retailer 6
-
$1,095 NZD
$615 USD
View
A
Retailer 7
-
$1,151 NZD
£509 GBP
View
A
Retailer 8
-
$1,234 NZD
€660 EUR
View
A
Retailer 9
-
$1,312 NZD
ZAR 11,907 ZAR
View
A
Retailer 10
-
$1,368 NZD
£605 GBP
View
A
Retailer 11
-
$1,737 NZD
$975 USD
View
A
Retailer 12
-
$1,773 NZD
A$1,532 AUD
View
A
Retailer 13
-
$2,167 NZD
$1,217 USD
View
B+
Retailer 14
-
$2,272 NZD
$1,276 USD
View
Retailer 15
-
$2,489 NZD
$1,398 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$2,530 NZD
$1,421 USD
View
B+
Retailer 17
-
$2,690 NZD
$1,511 USD
View
B+
Retailer 18
-
$2,954 NZD
$1,659 USD
View
B+
Retailer 19
-
$3,001 NZD
£1,327 GBP
View
B
Retailer 20
-
$4,611 NZD
$2,590 USD
View
Most Expensive
B
Brilliant Earth
21580806A · Oct 29
$5,858 NZD
$3,290 USD
View
20 more retailers have this diamond
Prices start from $687 NZDSave up to $5,171 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
$687 NZD