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Round|Lab Grown|IGI

1.00ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG763629218

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763629218

Diamond specifications and retailer prices

From $225 AUD
$158 USD
As of October 29, 2026
Save $1,395 AUD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,620 AUD at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG763629218 or 763629218. Listed at 22 retailers as of October 29, 2026, with prices from $225 to $1,620, a $1,395 spread on the same certified stone. Helzberg Diamonds lists it at $1,620. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763629218
Dimensions6.43 × 6.39 × 3.98 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
6.43 mm6.39 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763629218
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
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: Oct 29
Current: $1,620 AUD|Low: $214 AUD|High: $1,620 AUD|Avg: $666 AUD
Helzberg 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
Retailer 16
October 30, 2026
Retailer 7$225 AUD
Retailer 5$251 AUD
Retailer 4$278 AUD
Retailer 15$278 AUD
Retailer 2$487 AUD
Retailer 16$505 AUD
Retailer 11$543 AUD
Retailer 9$545 AUD
Retailer 14$623 AUD
Retailer 13$683 AUD
Retailer 12$759 AUD
Retailer 8$894 AUD
Retailer 6$973 AUD
Retailer 10$1,309 AUD
Retailer 3$1,507 AUD
Helzberg Diamonds$1,620 AUD

45 data points across 16 retailers

22 retailers$225 AUD to $1,620 AUD

A
Cheapest Retailer
-
$225 AUD
$158 USD
A
Retailer 2
-
$251 AUD
$176 USD
View
Final sale: no returns
A
Retailer 3
-
$260 AUD
$183 USD
View
A
Retailer 4
-
$278 AUD
$195 USD
View
A
Retailer 5
-
$278 AUD
$195 USD
View
A
Retailer 6
-
$390 AUD
$274 USD
View
B+
Retailer 7
-
$487 AUD
£270 GBP
View
B+
Retailer 8
-
$505 AUD
$355 USD
View
B+
Retailer 9
-
$543 AUD
€363 EUR
View
B+
Retailer 10
-
$545 AUD
£302 GBP
View
Retailer 11
-
$576 AUD
$405 USD
View
Price last confirmed 87 days ago
B+
Retailer 12
-
$623 AUD
$438 USD
View
Retailer 13
-
$655 AUD
$460 USD
View
Price last confirmed 13 days ago
B+
Retailer 14
-
$683 AUD
View
B
Retailer 15
-
$759 AUD
$533 USD
View
Retailer 16
-
$887 AUD
$623 USD
View
Price last confirmed 39 days ago
B
Retailer 17
-
$894 AUD
$628 USD
View
Retailer 18
-
$945 AUD
$664 USD
View
Price last confirmed 14 days ago
B
Retailer 19
-
$973 AUD
$683 USD
View
B
Retailer 20
-
$1,309 AUD
£724 GBP
View
B
Retailer 21
-
$1,507 AUD
$1,058 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZNMJMIPIHO · Oct 29
$1,620 AUD
$1,138 USD
View
21 more retailers have this diamond
Prices start from $225 AUDSave up to $1,395 AUD

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
1.00ct Round
$225 AUD