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Round|Lab Grown|IGI

1.00ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG818647078

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818647078

Diamond specifications and retailer prices

From $327 NZD
As of November 3, 2026
Save $2,323 NZD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,651 NZD at Brilliant Earth · As of November 4, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818647078 or 818647078. Listed at 20 retailers as of November 3, 2026, with prices from $327 to $2,651, a $2,323 spread on the same certified stone. Brilliant Earth lists it at $2,651. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818647078
Dimensions6.37 × 6.42 × 3.98 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
6.37 mm6.42 mm1.00 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818647078
Side View
Table 56.0%Crown 34.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

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: Nov 3
Current: $2,651 NZD|Low: $327 NZD|High: $3,202 NZD|Avg: $1,210 NZD|-15.3%
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
Retailer 20
November 5, 2026
Retailer 18$327 NZD
Retailer 20$366 NZD
Retailer 5$379 NZD
Retailer 19$406 NZD
Retailer 14$651 NZD
Retailer 17$697 NZD
Retailer 9$715 NZD
Retailer 15$720 NZD
Retailer 2$722 NZD
Retailer 11$795 NZD
Retailer 8$829 NZD
Retailer 16$987 NZD
Retailer 7$1,258 NZD
Retailer 3$1,302 NZD
Retailer 4$1,375 NZD
Retailer 10$1,396 NZD
Retailer 12$1,420 NZD
Retailer 13$1,887 NZD
Retailer 6$2,030 NZD
Brilliant Earth$2,651 NZD

35 data points across 20 retailers

20 retailers$327 NZD to $2,651 NZD

A
Cheapest Retailer
-
$327 NZD
A
Retailer 2
-
$366 NZD
View
Final sale: no returns
A
Retailer 3
-
$379 NZD
View
A
Retailer 4
-
$406 NZD
View
A
Retailer 5
-
$651 NZD
View
A
Retailer 6
-
$697 NZD
View
A
Retailer 7
-
$715 NZD
View
A
Retailer 8
-
$720 NZD
View
A
Retailer 9
-
$722 NZD
View
B+
Retailer 10
-
$795 NZD
View
B+
Retailer 11
-
$829 NZD
View
B+
Retailer 12
-
$987 NZD
View
Retailer 13
-
$1,258 NZD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$1,302 NZD
View
B
Retailer 15
-
$1,375 NZD
View
B
Retailer 16
-
$1,396 NZD
View
B
Retailer 17
-
$1,420 NZD
View
B
Retailer 18
-
$1,887 NZD
View
B
Retailer 19
-
$2,030 NZD
View
Most Expensive
B
Brilliant Earth
21614631A · Nov 4
$2,651 NZD
$1,490 USD
View
19 more retailers have this diamond
Prices start from $327 NZDSave up to $2,323 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
$327 NZD