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Round|Lab Grown|IGI

1.00ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG825656718

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825656718

Diamond specifications and retailer prices

From $452 NZD
$255 USD
As of October 30, 2026
Save $1,822 NZD (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,502 NZD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825656718 or 825656718. Listed at 21 retailers as of October 30, 2026, with a 403% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825656718
Dimensions6.44 × 6.46 × 3.93 mm
L/W Ratio1.00
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
6.44 mm6.46 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825656718
Side View
Table 60.0%Crown 35.5°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 60.9%

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 30
Current: $2,200 NZD|Low: $452 NZD|High: $2,502 NZD|Avg: $1,292 NZD|-12.1%
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
November 1, 2026
Retailer 3$452 NZD
Retailer 11$706 NZD
Retailer 7$809 NZD
Retailer 14$839 NZD
Retailer 10$840 NZD
Retailer 13$861 NZD
Retailer 8$933 NZD
Retailer 4$1,087 NZD
Retailer 9$1,301 NZD
Retailer 5$1,703 NZD
Retailer 6$1,757 NZD
Retailer 2$2,008 NZD
Brilliant Earth$2,200 NZD
Retailer 12$2,275 NZD

29 data points across 14 retailers

21 retailers$452 NZD to $2,275 NZD

Retailer 1
-
$422 NZD
$238 USD
Price last confirmed 21 days ago
A
Retailer 2
-
$452 NZD
$255 USD
View
Final sale: no returns
Retailer 3
-
$490 NZD
$276 USD
View
Price last confirmed 23 days ago
Retailer 4
-
$523 NZD
$295 USD
View
Price last confirmed 20 days ago
Retailer 5
-
$523 NZD
$295 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
$706 NZD
$398 USD
View
A
Retailer 7
-
$809 NZD
£359 GBP
View
A
Retailer 8
-
$839 NZD
$473 USD
View
A
Retailer 9
-
$840 NZD
€451 EUR
View
A
Retailer 10
-
$861 NZD
ZAR 7,835 ZAR
View
A
Retailer 11
-
$933 NZD
£414 GBP
View
B+
Retailer 12
-
$1,087 NZD
$613 USD
View
B+
Retailer 13
-
$1,301 NZD
$733 USD
View
Retailer 14
-
$1,684 NZD
$949 USD
View
Price last confirmed 32 days ago
B
Retailer 15
-
$1,703 NZD
$960 USD
View
Retailer 16
-
$1,757 NZD
$990 USD
View
Price last confirmed 7 days ago
B+
Retailer 17
-
$2,008 NZD
£891 GBP
View
B
Retailer 18
-
$2,200 NZD
$1,240 USD
View
B
Retailer 19
-
$2,275 NZD
$1,282 USD
View
Retailer 20
-
$2,502 NZD
$1,410 USD
View
Price last confirmed 33 days ago
Most Expensive
Brilliant Earth
21583972A · Sep 28
$2,502 NZD
$1,410 USD
View
Price last confirmed 33 days ago
20 more retailers have this diamond
Prices start from $452 NZDSave up to $1,822 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
1.00ct Round
$452 NZD