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Round|Lab Grown|IGI

1.55ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG733528055

Shape and cutting style on the report: Round brilliant

Certificate IGI LG733528055

Diamond specifications and retailer prices

From $589 NZD
$332 USD
As of November 1, 2026
Save $4,571 NZD (89%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $5,160 NZD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.55ct lab-grown round diamond

This 1.55ct 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 LG733528055 or 733528055. Listed at 29 retailers as of October 27, 2026, with prices from $589 to $5,160, a $4,571 spread on the same certified stone. Queensmith lists it at $5,160. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733528055
Dimensions7.41 × 7.45 × 4.60 mm
L/W Ratio1.01
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
7.41 mm7.45 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733528055
Side View
Table 56.0%Crown 33.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $936 NZD|Low: $589 NZD|High: $7,097 NZD|Avg: $2,147 NZD|-1.2%
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
November 1, 2026
Retailer 6$589 NZD
Retailer 2$669 NZD
Retailer 1$936 NZD
Retailer 15$1,002 NZD
Retailer 9$1,164 NZD
Retailer 12$1,255 NZD
Retailer 14$1,256 NZD
Retailer 8$1,305 NZD
Retailer 10$1,703 NZD
Retailer 13$1,703 NZD
Retailer 5$2,566 NZD
Retailer 4$2,945 NZD
Retailer 7$3,121 NZD
Retailer 3$4,090 NZD
Retailer 11$4,613 NZD

29 data points across 15 retailers

29 retailers$589 NZD to $5,160 NZD

A
Cheapest Retailer
-
$589 NZD
$332 USD
A
Retailer 2
-
$669 NZD
$377 USD
View
Final sale: no returns
A
Retailer 3
-
$683 NZD
$385 USD
View
A
Retailer 4
-
$731 NZD
$412 USD
View
Retailer 5
-
$731 NZD
$412 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$818 NZD
HK$3,600 HKD
View
A
Retailer 7
-
$936 NZD
£415 GBP
View
A
Retailer 8
-
$985 NZD
$555 USD
View
A
Retailer 9
-
$1,002 NZD
$565 USD
View
A
Retailer 10
-
$1,164 NZD
€625 EUR
View
A
Retailer 11
-
$1,255 NZD
A$1,088 AUD
View
A
Retailer 12
-
$1,256 NZD
ZAR 11,435 ZAR
View
A
Retailer 13
-
$1,305 NZD
£579 GBP
View
A
Retailer 14
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$1,322 NZD
$745 USD
View
A
Retailer 15
-
$1,703 NZD
$960 USD
View
A
Retailer 16
-
$1,703 NZD
A$1,477 AUD
View
B+
Retailer 17
-
$1,794 NZD
$1,011 USD
View
B+
Retailer 18
-
$1,808 NZD
$1,019 USD
View
B+
Retailer 19
-
$2,342 NZD
SGD 1,784 SGD
View
B+
Retailer 20
-
$2,349 NZD
$1,324 USD
View
B+
Retailer 21
-
$2,427 NZD
$1,368 USD
View
B+
Retailer 22
-
$2,488 NZD
$1,402 USD
View
B+
Retailer 23
-
$2,566 NZD
$1,446 USD
View
B+
Retailer 24
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$2,866 NZD
$1,615 USD
View
Retailer 25
-
$2,945 NZD
£1,307 GBP
View
Price last confirmed 11 days ago
Retailer 26
-
$3,121 NZD
A$2,706 AUD
View
Price last confirmed 24 days ago
Retailer 27
-
$4,090 NZD
$2,305 USD
View
Price last confirmed 14 days ago
B
Retailer 28
-
$4,613 NZD
$2,600 USD
View
Most Expensive
B
Queensmith
LG733528055 · Oct 27
$5,160 NZD
£2,290 GBP
View
28 more retailers have this diamond
Prices start from $589 NZDSave up to $4,571 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
1.55ct Round
$589 NZD