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Round|Lab Grown|IGI

1.55ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG815609356

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815609356

Diamond specifications and retailer prices

From $615 NZD
$346 USD
As of November 1, 2026
Save $5,979 NZD (91%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,594 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815609356 or 815609356. Listed at 23 retailers as of November 1, 2026, with prices from $615 to $6,594, a $5,979 spread on the same certified stone. Brilliant Earth lists it at $6,594. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815609356
Dimensions7.47 × 7.49 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.47 mm7.49 mm1.55 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815609356
Side View
Table 58.0%Crown 33.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.2%

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 1
Current: $6,594 NZD|Low: $615 NZD|High: $6,594 NZD|Avg: $2,094 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
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Retailer 14
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
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Retailer 22
November 2, 2026
Retailer 14$615 NZD
Retailer 8$713 NZD
Retailer 3$761 NZD
Retailer 11$761 NZD
Retailer 6$842 NZD
Retailer 22$1,017 NZD
Retailer 21$1,031 NZD
Retailer 2$1,196 NZD
Retailer 4$1,217 NZD
Retailer 13$1,313 NZD
Retailer 16$1,353 NZD
Retailer 12$1,616 NZD
Retailer 19$1,768 NZD
Retailer 18$1,770 NZD
Retailer 5$2,447 NZD
Retailer 7$2,459 NZD
Retailer 10$2,523 NZD
Retailer 15$2,883 NZD
Retailer 17$2,975 NZD
Retailer 9$3,286 NZD
Retailer 20$3,492 NZD
Brilliant Earth$6,594 NZD

33 data points across 22 retailers

23 retailers$615 NZD to $6,594 NZD

A
Cheapest Retailer
-
$615 NZD
$346 USD
A
Retailer 2
-
$713 NZD
$401 USD
View
Retailer 3
-
$761 NZD
$428 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$761 NZD
$428 USD
View
A
Retailer 5
-
$842 NZD
HK$3,700 HKD
View
A
Retailer 6
-
$1,017 NZD
$572 USD
View
A
Retailer 7
-
$1,031 NZD
$580 USD
View
A
Retailer 8
-
$1,196 NZD
€641 EUR
View
A
Retailer 9
-
$1,217 NZD
$685 USD
View
A
Retailer 10
-
$1,313 NZD
ZAR 11,937 ZAR
View
A
Retailer 11
-
$1,353 NZD
£599 GBP
View
B+
Retailer 12
-
$1,616 NZD
$909 USD
View
B+
Retailer 13
-
$1,768 NZD
A$1,530 AUD
View
B+
Retailer 14
-
$1,770 NZD
$996 USD
View
B+
Retailer 15
-
$2,447 NZD
$1,377 USD
View
B+
Retailer 16
-
$2,459 NZD
SGD 1,870 SGD
View
B+
Retailer 17
-
$2,523 NZD
$1,420 USD
View
B
Retailer 18
-
$2,742 NZD
$1,543 USD
View
B
Retailer 19
-
$2,883 NZD
$1,622 USD
View
B+
Retailer 20
-
$2,975 NZD
£1,318 GBP
View
B
Retailer 21
-
$3,286 NZD
$1,849 USD
View
B
Retailer 22
-
$3,492 NZD
$1,965 USD
View
Most Expensive
B
Brilliant Earth
20763193A · Nov 2
$6,594 NZD
$3,710 USD
View
22 more retailers have this diamond
Prices start from $615 NZDSave up to $5,979 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
$615 NZD