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Round|Lab Grown|IGI

1.43ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG770641607

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770641607

Diamond specifications and retailer prices

From $319 AUD
$224 USD
As of October 29, 2026
Save $1,490 AUD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,809 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.43ct lab-grown round diamond

This 1.43ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770641607 or 770641607. Listed at 22 retailers as of October 29, 2026, with prices from $319 to $1,809, a $1,490 spread on the same certified stone. Reve Diamonds lists it at $1,809. 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

1.43
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770641607
Dimensions7.23 × 7.16 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.23 mm7.16 mm1.43 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770641607
Side View
Table 56.0%Crown 35.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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: $773 AUD|Low: $316 AUD|High: $1,809 AUD|Avg: $823 AUD|+0.0%
Retailer 1
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
Retailer 18
Reve Diamonds
October 30, 2026
Retailer 8$319 AUD
Retailer 12$357 AUD
Retailer 15$370 AUD
Retailer 3$396 AUD
Retailer 4$396 AUD
Retailer 5$673 AUD
Retailer 17$727 AUD
Retailer 11$734 AUD
Retailer 14$749 AUD
Retailer 2$752 AUD
Retailer 1$773 AUD
Retailer 16$803 AUD
Retailer 18$840 AUD
Retailer 6$1,082 AUD
Retailer 9$1,273 AUD
Retailer 7$1,347 AUD
Retailer 10$1,423 AUD
Retailer 13$1,594 AUD
Reve Diamonds$1,809 AUD

34 data points across 19 retailers

22 retailers$319 AUD to $1,809 AUD

Retailer 1
-
$316 AUD
$222 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$319 AUD
$224 USD
View
A
Retailer 3
-
$357 AUD
$251 USD
View
Final sale: no returns
A
Retailer 4
-
$370 AUD
$260 USD
View
Retailer 5
-
$387 AUD
$272 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$396 AUD
$278 USD
View
A
Retailer 7
-
$396 AUD
$278 USD
View
B+
Retailer 8
-
$673 AUD
$473 USD
View
B+
Retailer 9
-
$727 AUD
$511 USD
View
B+
Retailer 10
-
$734 AUD
£406 GBP
View
B+
Retailer 11
-
$749 AUD
€501 EUR
View
B+
Retailer 12
-
$752 AUD
$528 USD
View
B+
Retailer 13
-
$773 AUD
£428 GBP
View
B+
Retailer 14
-
$803 AUD
View
B+
Retailer 15
-
$840 AUD
$590 USD
View
B
Retailer 16
-
$1,082 AUD
$760 USD
View
Retailer 17
-
$1,261 AUD
$886 USD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$1,273 AUD
$894 USD
View
B
Retailer 19
-
$1,347 AUD
$947 USD
View
B
Retailer 20
-
$1,423 AUD
$1,000 USD
View
B
Retailer 21
-
$1,594 AUD
£882 GBP
View
Most Expensive
B
Reve Diamonds
9E01CE85A · Oct 30
$1,809 AUD
$1,271 USD
View
21 more retailers have this diamond
Prices start from $319 AUDSave up to $1,490 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
1.43ct Round
$319 AUD