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Round|Lab Grown|IGI

1.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG734531337

Shape and cutting style on the report: Round brilliant

Certificate IGI LG734531337

Diamond specifications and retailer prices

From $340 NZD
$191 USD
As of October 29, 2026
Save $2,543 NZD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,883 NZD at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG734531337 or 734531337. Listed at 23 retailers as of October 29, 2026, with prices from $340 to $2,883, a $2,543 spread on the same certified stone. Helzberg Diamonds lists it at $2,883. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734531337
Dimensions6.52 × 6.50 × 4.02 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
6.52 mm6.50 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734531337
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.7%

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 29
Current: $2,883 NZD|Low: $329 NZD|High: $2,883 NZD|Avg: $1,081 NZD
Helzberg Diamonds
Retailer 2
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October 29, 2026
Retailer 13$340 NZD
Retailer 12$379 NZD
Retailer 23$393 NZD
Retailer 4$420 NZD
Retailer 14$420 NZD
Retailer 16$570 NZD
Retailer 8$682 NZD
Retailer 18$712 NZD
Retailer 20$722 NZD
Retailer 2$763 NZD
Retailer 7$887 NZD
Retailer 6$924 NZD
Retailer 9$981 NZD
Retailer 22$1,027 NZD
Retailer 3$1,072 NZD
Retailer 21$1,351 NZD
Retailer 19$1,400 NZD
Retailer 11$1,448 NZD
Retailer 5$1,861 NZD
Retailer 17$1,976 NZD
Retailer 15$2,071 NZD
Retailer 10$2,404 NZD
Helzberg Diamonds$2,883 NZD

24 data points across 23 retailers

23 retailers$340 NZD to $2,883 NZD

A
Cheapest Retailer
-
$340 NZD
$191 USD
A
Retailer 2
-
$379 NZD
$213 USD
View
Final sale: no returns
A
Retailer 3
-
$393 NZD
$221 USD
View
A
Retailer 4
-
$420 NZD
$236 USD
View
A
Retailer 5
-
$420 NZD
$236 USD
View
A
Retailer 6
-
$570 NZD
$320 USD
View
A
Retailer 7
-
$682 NZD
£302 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
$712 NZD
€381 EUR
View
A
Retailer 9
-
$722 NZD
ZAR 6,553 ZAR
View
A
Retailer 10
-
$763 NZD
£337 GBP
View
A
Retailer 11
-
$887 NZD
$498 USD
View
A
Retailer 12
-
$924 NZD
A$798 AUD
View
B+
Retailer 13
-
$981 NZD
$551 USD
View
A
Retailer 14
-
$1,027 NZD
A$887 AUD
View
B+
Retailer 15
-
$1,072 NZD
$602 USD
View
B+
Retailer 16
-
$1,351 NZD
$759 USD
View
B+
Retailer 17
-
$1,400 NZD
A$1,210 AUD
View
B+
Retailer 18
-
$1,448 NZD
$813 USD
View
B
Retailer 19
-
$1,861 NZD
$1,045 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
-
$1,976 NZD
£874 GBP
View
B
Retailer 21
-
$2,071 NZD
$1,163 USD
View
B
Retailer 22
-
$2,404 NZD
$1,350 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHLNMO · Oct 29
$2,883 NZD
$1,619 USD
View
22 more retailers have this diamond
Prices start from $340 NZDSave up to $2,543 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
1.05ct Round
$340 NZD