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1.64ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG12279308

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12279308

Diamond specifications and retailer prices

From $766 NZD
$432 USD
As of November 1, 2026
Save $4,805 NZD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,571 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.64ct lab-grown round diamond

This 1.64ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12279308 or 12279308. Listed at 11 retailers as of October 31, 2026, with prices from $766 to $5,571, a $4,805 spread on the same certified stone. Do Amore Diamonds lists it at $5,571. 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

1.64
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12279308
Dimensions7.59 × 7.61 × 4.64 mm
L/W Ratio1.00
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.59 mm7.61 mm1.64 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12279308
Side View
Table 59.5%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

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: $5,571 NZD|Low: $766 NZD|High: $5,571 NZD|Avg: $1,999 NZD|+0.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$766 NZD
Retailer 8$960 NZD
Retailer 9$1,047 NZD
Retailer 11$1,344 NZD
Retailer 5$1,384 NZD
Retailer 3$1,506 NZD
Retailer 2$1,632 NZD
Retailer 7$2,278 NZD
Retailer 10$2,351 NZD
Retailer 4$3,351 NZD
Do Amore Diamonds$5,571 NZD

11 data points across 11 retailers

11 retailers$766 NZD to $5,571 NZD

B+
Cheapest Retailer
-
$766 NZD
$432 USD
A
Retailer 2
-
$960 NZD
$541 USD
View
A
Retailer 3
-
$1,047 NZD
$590 USD
View
A
Retailer 4
-
$1,344 NZD
$758 USD
View
A
Retailer 5
-
$1,384 NZD
£614 GBP
View
A
Retailer 6
-
$1,506 NZD
$849 USD
View
A
Retailer 7
-
$1,632 NZD
$920 USD
View
A
Retailer 8
-
$2,278 NZD
$1,284 USD
View
A
Retailer 9
-
$2,351 NZD
$1,325 USD
View
B+
Retailer 10
-
$3,351 NZD
£1,487 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DBBFF0559 · Oct 31
$5,571 NZD
$3,140 USD
View
10 more retailers have this diamond
Prices start from $766 NZDSave up to $4,805 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
1.64ct Round
$766 NZD