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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG658484148

Shape and cutting style on the report: Round brilliant

Certificate IGI LG658484148

Diamond specifications and retailer prices

From $770 NZD
As of November 4, 2026
Save $6,007 NZD (89%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $6,777 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 LG658484148 or 658484148. Listed at 27 retailers as of November 3, 2026, with prices from $770 to $6,777, a $6,007 spread on the same certified stone. Brilliant Earth lists it at $6,777. 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 angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658484148
Dimensions7.32 × 7.35 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
7.32 mm7.35 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658484148
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

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 4
Current: $6,777 NZD|Low: $770 NZD|High: $6,777 NZD|Avg: $1,930 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 12
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Retailer 15
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Retailer 20
November 5, 2026
Retailer 19$770 NZD
Retailer 6$930 NZD
Retailer 15$1,089 NZD
Retailer 16$1,118 NZD
Retailer 9$1,150 NZD
Retailer 8$1,286 NZD
Retailer 3$1,346 NZD
Retailer 17$1,350 NZD
Retailer 18$1,472 NZD
Retailer 13$1,527 NZD
Retailer 5$1,747 NZD
Retailer 14$1,990 NZD
Retailer 4$2,015 NZD
Retailer 11$2,723 NZD
Retailer 7$2,810 NZD
Retailer 20$3,057 NZD
Retailer 10$3,183 NZD
Retailer 12$3,195 NZD
Retailer 2$3,326 NZD
Brilliant Earth$6,777 NZD

29 data points across 20 retailers

27 retailers$770 NZD to $6,777 NZD

Retailer 1
-
$688 NZD
Price last confirmed 18 days ago
A
Retailer 2
-
$770 NZD
View
Final sale: no returns
Retailer 3
-
$772 NZD
View
Price last confirmed 16 days ago
Retailer 4
-
$853 NZD
View
Price last confirmed 20 days ago
Retailer 5
-
$853 NZD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$930 NZD
View
A
Retailer 7
-
$1,089 NZD
View
A
Retailer 8
-
$1,118 NZD
View
A
Retailer 9
-
$1,150 NZD
View
A
Retailer 10
-
$1,286 NZD
View
A
Retailer 11
-
$1,346 NZD
View
A
Retailer 12
-
$1,350 NZD
View
A
Retailer 13
-
$1,472 NZD
View
A
Retailer 14
-
$1,527 NZD
View
B+
Retailer 15
-
$1,747 NZD
View
B+
Retailer 16
-
$1,990 NZD
View
B+
Retailer 17
-
$2,015 NZD
View
Retailer 18
-
$2,045 NZD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$2,723 NZD
View
Retailer 20
-
$2,744 NZD
View
Price last confirmed 18 days ago
B+
Retailer 21
-
$2,810 NZD
View
B
Retailer 22
-
$2,987 NZD
View
B+
Retailer 23
-
$3,057 NZD
View
B
Retailer 24
-
$3,183 NZD
View
B
Retailer 25
-
$3,195 NZD
View
B
Retailer 26
-
$3,326 NZD
View
Most Expensive
B
Brilliant Earth
14067819A · Nov 3
$6,777 NZD
$3,820 USD
View
26 more retailers have this diamond
Prices start from $770 NZDSave up to $6,007 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
$770 NZD