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Round|Lab Grown|IGI

1.51ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG797646136

Shape and cutting style on the report: Round brilliant

Certificate IGI LG797646136

Diamond specifications and retailer prices

From $743 NZD
$419 USD
As of October 30, 2026
Save $2,855 NZD (79%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,886 NZD at Rare Carat · As of September 9, 2026
View at Rare Carat

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG797646136 or 797646136. Listed at 26 retailers as of October 30, 2026, with a 384% 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

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797646136
Dimensions7.32 × 7.35 × 4.55 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.32 mm7.35 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797646136
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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: $1,939 NZD|Low: $743 NZD|High: $3,646 NZD|Avg: $1,920 NZD|-18.8%
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
Retailer 17
Retailer 18
October 30, 2026
Retailer 9$743 NZD
Retailer 10$931 NZD
Retailer 17$1,091 NZD
Retailer 18$1,109 NZD
Retailer 11$1,243 NZD
Retailer 3$1,272 NZD
Retailer 14$1,295 NZD
Retailer 16$1,417 NZD
Retailer 12$1,486 NZD
Retailer 4$1,595 NZD
Retailer 13$1,913 NZD
Retailer 1$1,939 NZD
Retailer 6$2,672 NZD
Retailer 8$2,720 NZD
Retailer 5$3,087 NZD
Retailer 2$3,108 NZD
Retailer 15$3,240 NZD
Retailer 7$3,598 NZD

26 data points across 18 retailers

26 retailers$743 NZD to $3,598 NZD

Retailer 1
-
$672 NZD
$379 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$743 NZD
$419 USD
View
Final sale: no returns
Retailer 3
-
$770 NZD
$434 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$852 NZD
$480 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$852 NZD
$480 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$931 NZD
HK$4,100 HKD
View
A
Retailer 7
-
$1,091 NZD
$615 USD
View
A
Retailer 8
-
$1,109 NZD
$625 USD
View
A
Retailer 9
-
$1,243 NZD
£552 GBP
View
A
Retailer 10
-
$1,272 NZD
$717 USD
View
A
Retailer 11
-
$1,295 NZD
€695 EUR
View
A
Retailer 12
-
$1,417 NZD
ZAR 12,902 ZAR
View
A
Retailer 13
-
$1,486 NZD
£660 GBP
View
A
Retailer 14
-
$1,595 NZD
$899 USD
View
B+
Retailer 15
-
$1,913 NZD
A$1,659 AUD
View
B+
Retailer 16
-
$1,939 NZD
$1,093 USD
View
B+
Retailer 17
-
$2,314 NZD
$1,304 USD
View
B+
Retailer 18
-
$2,672 NZD
SGD 2,035 SGD
View
Retailer 19
-
$2,681 NZD
$1,511 USD
View
Price last confirmed 12 days ago
B+
Retailer 20
-
$2,720 NZD
$1,533 USD
View
B+
Retailer 21
-
$2,931 NZD
$1,652 USD
View
B+
Retailer 22
-
$3,087 NZD
$1,740 USD
View
B
Retailer 23
-
$3,108 NZD
$1,751 USD
View
B+
Retailer 24
-
$3,240 NZD
£1,438 GBP
View
B
Retailer 25
-
$3,598 NZD
$2,028 USD
View
Most Expensive
Rare Carat
35270594 · Sep 9
$3,886 NZD
$2,190 USD
View
Price last confirmed 51 days ago
25 more retailers have this diamond
Prices start from $743 NZDSave up to $2,855 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
$743 NZD