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3.56ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG689536418

Shape and cutting style on the report: Round brilliant

Certificate IGI LG689536418

Diamond specifications and retailer prices

From $672 NZD
$379 USD
As of October 29, 2026
Save $2,716 NZD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,389 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.56ct lab-grown round diamond

This 3.56ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG689536418 or 689536418. Listed at 15 retailers as of October 28, 2026, with prices from $672 to $3,389, a $2,716 spread on the same certified stone. Rare Carat lists it at $3,389. 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

3.56
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689536418
Dimensions9.85 × 9.91 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.85 mm9.91 mm3.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689536418
Side View
Table 57.0%Crown 34.4°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 60.7%

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: $3,389 NZD|Low: $672 NZD|High: $9,084 NZD|Avg: $2,693 NZD|-27.6%
Rare Carat
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
Retailer 16
Retailer 17
October 31, 2026
Retailer 12$672 NZD
Retailer 7$754 NZD
Retailer 6$834 NZD
Retailer 17$931 NZD
Retailer 13$1,100 NZD
Retailer 11$1,118 NZD
Retailer 4$1,327 NZD
Retailer 14$1,332 NZD
Retailer 16$1,421 NZD
Retailer 2$1,505 NZD
Retailer 3$1,957 NZD
Retailer 10$2,340 NZD
Retailer 5$2,681 NZD
Retailer 15$3,276 NZD
Rare Carat$3,389 NZD
Retailer 8$8,654 NZD
Retailer 9$9,084 NZD

5 data points across 17 retailers

15 retailers$672 NZD to $3,389 NZD

A
Cheapest Retailer
-
$672 NZD
$379 USD
A
Retailer 2
-
$754 NZD
$425 USD
View
A
Retailer 3
-
$834 NZD
$470 USD
View
A
Retailer 4
-
$931 NZD
HK$4,100 HKD
View
A
Retailer 5
-
$1,100 NZD
$620 USD
View
A
Retailer 6
-
$1,118 NZD
£496 GBP
View
B+
Retailer 7
-
$1,327 NZD
$748 USD
View
A
Retailer 8
-
$1,332 NZD
€715 EUR
View
A
Retailer 9
-
$1,421 NZD
$801 USD
View
A
Retailer 10
-
$1,505 NZD
£668 GBP
View
B+
Retailer 11
-
$1,957 NZD
$1,103 USD
View
B+
Retailer 12
-
$2,340 NZD
$1,319 USD
View
B+
Retailer 13
-
$2,681 NZD
$1,511 USD
View
B
Retailer 14
-
$3,276 NZD
£1,454 GBP
View
Most Expensive
B
Rare Carat
KI4185364KF689 · Oct 28
$3,389 NZD
$1,910 USD
View
14 more retailers have this diamond
Prices start from $672 NZDSave up to $2,716 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
3.56ct Round
$672 NZD