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Round|Lab Grown|IGI

1.00ct H IF Round Lab Grown Diamond

ID • H/IF • IGI LG821638249

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821638249

Diamond specifications and retailer prices

From $283 NZD
As of November 5, 2026
Save $1,610 NZD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,893 NZD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821638249 or 821638249. Listed at 17 retailers as of November 4, 2026, with prices from $283 to $1,893, a $1,610 spread on the same certified stone. Reve Diamonds lists it at $1,893. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
H
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638249
Dimensions6.51 × 6.47 × 3.86 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 Faint Blue
Top View
6.51 mm6.47 mm1.00 ctH / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638249
Side View
Table 58.0%Crown 33.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.5%

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 5
Current: $525 NZD|Low: $283 NZD|High: $1,893 NZD|Avg: $808 NZD|-1.0%
Retailer 1
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
Reve Diamonds
November 5, 2026
Retailer 15$283 NZD
Retailer 3$317 NZD
Retailer 13$329 NZD
Retailer 2$352 NZD
Retailer 4$352 NZD
Retailer 5$489 NZD
Retailer 1$525 NZD
Retailer 12$557 NZD
Retailer 10$607 NZD
Retailer 6$783 NZD
Retailer 7$820 NZD
Retailer 9$857 NZD
Retailer 16$1,130 NZD
Retailer 14$1,194 NZD
Retailer 8$1,227 NZD
Retailer 11$1,644 NZD
Reve Diamonds$1,893 NZD

26 data points across 17 retailers

17 retailers$283 NZD to $1,893 NZD

A
Cheapest Retailer
-
$283 NZD
A
Retailer 2
-
$317 NZD
View
Final sale: no returns
A
Retailer 3
-
$329 NZD
View
Retailer 4
-
$352 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$352 NZD
View
B+
Retailer 6
-
$489 NZD
View
A
Retailer 7
-
$525 NZD
View
A
Retailer 8
-
$557 NZD
View
A
Retailer 9
-
$607 NZD
View
B+
Retailer 10
-
$783 NZD
View
B+
Retailer 11
-
$820 NZD
View
B+
Retailer 12
-
$857 NZD
View
B+
Retailer 13
-
$1,130 NZD
View
B+
Retailer 14
-
$1,194 NZD
View
B
Retailer 15
-
$1,227 NZD
View
B
Retailer 16
-
$1,644 NZD
View
Most Expensive
B
Reve Diamonds
F02AEB618 · Nov 4
$1,893 NZD
$1,064 USD
View
16 more retailers have this diamond
Prices start from $283 NZDSave up to $1,610 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
$283 NZD