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Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG712551704

Shape and cutting style on the report: Round brilliant

Certificate IGI LG712551704

Diamond specifications and retailer prices

From $1,216 NZD
$683 USD
As of October 29, 2026
Save $7,704 NZD (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $8,920 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 LG712551704 or 712551704. Listed at 24 retailers as of October 29, 2026, with prices from $1,216 to $8,920, a $7,704 spread on the same certified stone. Brilliant Earth lists it at $8,920. 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 angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712551704
Dimensions7.85 × 7.90 × 4.78 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
7.85 mm7.90 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712551704
Side View
Table 57.0%Crown 33.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.7%

Caratlytics Score

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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 29
Current: $8,920 NZD|Low: $1,323 NZD|High: $8,920 NZD|Avg: $3,260 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
October 30, 2026
Retailer 6$1,323 NZD
Retailer 7$1,360 NZD
Retailer 10$1,727 NZD
Retailer 5$1,862 NZD
Retailer 2$2,252 NZD
Retailer 8$2,296 NZD
Retailer 3$2,299 NZD
Retailer 9$2,594 NZD
Retailer 12$3,511 NZD
Retailer 14$3,606 NZD
Retailer 15$4,567 NZD
Retailer 4$4,752 NZD
Retailer 13$4,879 NZD
Retailer 11$5,954 NZD
Brilliant Earth$8,920 NZD

44 data points across 15 retailers

24 retailers$1,216 NZD to $8,920 NZD

A
Cheapest Retailer
-
$1,216 NZD
$683 USD
A
Retailer 2
-
$1,323 NZD
$743 USD
View
A
Retailer 3
-
$1,360 NZD
$764 USD
View
Final sale: no returns
Retailer 4
-
$1,412 NZD
$793 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,412 NZD
$793 USD
View
A
Retailer 6
-
$1,641 NZD
HK$7,200 HKD
View
A
Retailer 7
-
$1,727 NZD
$970 USD
View
A
Retailer 8
-
$1,862 NZD
$1,046 USD
View
B+
Retailer 9
-
$2,252 NZD
£996 GBP
View
B+
Retailer 10
-
$2,296 NZD
€1,228 EUR
View
B+
Retailer 11
-
$2,299 NZD
$1,291 USD
View
B+
Retailer 12
-
$2,373 NZD
$1,333 USD
View
B+
Retailer 13
-
$2,594 NZD
ZAR 23,537 ZAR
View
Retailer 14
-
$3,511 NZD
A$3,034 AUD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
$3,606 NZD
$2,025 USD
View
B
Retailer 16
-
$3,969 NZD
$2,229 USD
View
B+
Retailer 17
-
$4,567 NZD
$2,565 USD
View
B
Retailer 18
-
$4,752 NZD
SGD 3,607 SGD
View
B
Retailer 19
-
$4,814 NZD
$2,704 USD
View
B
Retailer 20
-
$4,867 NZD
$2,734 USD
View
B
Retailer 21
-
$4,871 NZD
$2,736 USD
View
B
Retailer 22
-
$4,879 NZD
$2,740 USD
View
B
Retailer 23
-
$5,954 NZD
£2,633 GBP
View
Most Expensive
B
Brilliant Earth
19056412A · Oct 29
$8,920 NZD
$5,010 USD
View
23 more retailers have this diamond
Prices start from $1,216 NZDSave up to $7,704 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
$1,216 NZD