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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG838619572

Shape and cutting style on the report: Round brilliant

Certificate IGI LG838619572

Diamond specifications and retailer prices

From $587 NZD
As of November 3, 2026
Save $4,611 NZD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,198 NZD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG838619572 or 838619572. Listed at 20 retailers as of November 3, 2026, with prices from $587 to $5,198, a $4,611 spread on the same certified stone. Brilliant Earth lists it at $5,198. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838619572
Dimensions7.28 × 7.31 × 4.54 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
7.28 mm7.31 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838619572
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A+
Exceptional
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: $5,198 NZD|Low: $587 NZD|High: $6,830 NZD|Avg: $1,608 NZD|-17.7%
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$587 NZD
Retailer 20$656 NZD
Retailer 6$681 NZD
Retailer 7$729 NZD
Retailer 10$743 NZD
Retailer 3$795 NZD
Retailer 13$930 NZD
Retailer 16$1,002 NZD
Retailer 15$1,178 NZD
Retailer 17$1,187 NZD
Retailer 9$1,189 NZD
Retailer 8$1,265 NZD
Retailer 2$1,288 NZD
Retailer 14$1,710 NZD
Retailer 19$2,136 NZD
Retailer 5$2,331 NZD
Retailer 4$2,342 NZD
Retailer 12$2,597 NZD
Retailer 11$2,982 NZD
Brilliant Earth$5,198 NZD

21 data points across 20 retailers

20 retailers$587 NZD to $5,198 NZD

A+
Cheapest Retailer
-
$587 NZD
A
Retailer 2
-
$656 NZD
View
Final sale: no returns
A
Retailer 3
-
$681 NZD
View
A
Retailer 4
-
$729 NZD
View
Retailer 5
-
$743 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$795 NZD
View
A
Retailer 7
-
$930 NZD
View
A
Retailer 8
-
$1,002 NZD
View
A
Retailer 9
-
$1,178 NZD
View
A
Retailer 10
-
$1,187 NZD
View
A
Retailer 11
-
$1,189 NZD
View
A
Retailer 12
-
$1,265 NZD
View
A
Retailer 13
-
$1,288 NZD
View
A
Retailer 14
-
$1,710 NZD
View
B+
Retailer 15
-
$2,136 NZD
View
B+
Retailer 16
-
$2,331 NZD
View
B+
Retailer 17
-
$2,342 NZD
View
B+
Retailer 18
-
$2,597 NZD
View
Retailer 19
-
$2,982 NZD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21621094A · Nov 3
$5,198 NZD
$2,930 USD
View
19 more retailers have this diamond
Prices start from $587 NZDSave up to $4,611 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+
1.51ct Round
$587 NZD