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1.80ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG591307563

Shape and cutting style on the report: Round brilliant

Certificate IGI LG591307563

Diamond specifications and retailer prices

From $557 NZD
$313 USD
As of November 2, 2026
Save $3,531 NZD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,088 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG591307563 or 591307563. Listed at 17 retailers as of November 2, 2026, with prices from $557 to $4,088, a $3,531 spread on the same certified stone. Do Amore Diamonds lists it at $4,088. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.80
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591307563
Dimensions7.89 × 7.85 × 4.77 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.89 mm7.85 mm1.80 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591307563
Side View
Table 58.0%Crown 33.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.6%

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 2
Current: $4,088 NZD|Low: $492 NZD|High: $4,212 NZD|Avg: $1,409 NZD|-3.0%
Do Amore Diamonds
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 3, 2026
Retailer 6$492 NZD
Retailer 7$544 NZD
Retailer 4$557 NZD
Retailer 15$709 NZD
Retailer 3$773 NZD
Retailer 14$809 NZD
Retailer 13$995 NZD
Retailer 2$1,104 NZD
Retailer 10$1,155 NZD
Retailer 9$1,262 NZD
Retailer 11$1,617 NZD
Retailer 12$1,703 NZD
Retailer 5$2,242 NZD
Retailer 8$2,336 NZD
Do Amore Diamonds$4,088 NZD

40 data points across 15 retailers

17 retailers$557 NZD to $4,088 NZD

Retailer 1
-
$439 NZD
$247 USD
Price last confirmed 35 days ago
Retailer 2
-
$508 NZD
$286 USD
View
Price last confirmed 41 days ago
Retailer 3
-
$537 NZD
$302 USD
View
Price last confirmed 35 days ago
A
Retailer 4
-
$557 NZD
$313 USD
View
B+
Retailer 5
-
$709 NZD
$399 USD
View
A
Retailer 6
-
$773 NZD
HK$3,400 HKD
View
A
Retailer 7
-
$809 NZD
$455 USD
View
A
Retailer 8
-
$995 NZD
$560 USD
View
A
Retailer 9
-
$1,040 NZD
$585 USD
View
B+
Retailer 10
-
$1,104 NZD
£489 GBP
View
B+
Retailer 11
-
$1,262 NZD
€676 EUR
View
B+
Retailer 12
-
$1,617 NZD
$910 USD
View
B+
Retailer 13
-
$1,703 NZD
$958 USD
View
Retailer 14
-
$1,932 NZD
$1,087 USD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$2,242 NZD
SGD 1,705 SGD
View
B
Retailer 16
-
$2,336 NZD
£1,035 GBP
View
Most Expensive
B
Do Amore Diamonds
27-08A2DD4D9 · Nov 2
$4,088 NZD
$2,300 USD
View
16 more retailers have this diamond
Prices start from $557 NZDSave up to $3,531 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
1.80ct Round
$557 NZD