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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 $399 NZD
$224 USD
As of October 29, 2026
Save $1,864 NZD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,263 NZD 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 $399 to $2,263, a $1,864 spread on the same certified stone. Reve Diamonds lists it at $2,263. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $967 NZD|Low: $395 NZD|High: $2,263 NZD|Avg: $1,029 NZD|+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$399 NZD
Retailer 12$447 NZD
Retailer 15$463 NZD
Retailer 3$495 NZD
Retailer 4$495 NZD
Retailer 5$842 NZD
Retailer 17$910 NZD
Retailer 11$919 NZD
Retailer 14$937 NZD
Retailer 2$940 NZD
Retailer 1$967 NZD
Retailer 16$1,005 NZD
Retailer 18$1,050 NZD
Retailer 6$1,353 NZD
Retailer 9$1,592 NZD
Retailer 7$1,685 NZD
Retailer 10$1,781 NZD
Retailer 13$1,994 NZD
Reve Diamonds$2,263 NZD

34 data points across 19 retailers

22 retailers$399 NZD to $2,263 NZD

Retailer 1
-
$395 NZD
$222 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$399 NZD
$224 USD
View
A
Retailer 3
-
$447 NZD
$251 USD
View
Final sale: no returns
A
Retailer 4
-
$463 NZD
$260 USD
View
Retailer 5
-
$484 NZD
$272 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$495 NZD
$278 USD
View
A
Retailer 7
-
$495 NZD
$278 USD
View
B+
Retailer 8
-
$842 NZD
$473 USD
View
B+
Retailer 9
-
$910 NZD
$511 USD
View
B+
Retailer 10
-
$919 NZD
£406 GBP
View
B+
Retailer 11
-
$937 NZD
€501 EUR
View
B+
Retailer 12
-
$940 NZD
$528 USD
View
B+
Retailer 13
-
$967 NZD
£428 GBP
View
B+
Retailer 14
-
$1,005 NZD
A$868 AUD
View
B+
Retailer 15
-
$1,050 NZD
$590 USD
View
B
Retailer 16
-
$1,353 NZD
$760 USD
View
Retailer 17
-
$1,578 NZD
$886 USD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$1,592 NZD
$894 USD
View
B
Retailer 19
-
$1,685 NZD
$947 USD
View
B
Retailer 20
-
$1,781 NZD
$1,000 USD
View
B
Retailer 21
-
$1,994 NZD
£882 GBP
View
Most Expensive
B
Reve Diamonds
9E01CE85A · Oct 30
$2,263 NZD
$1,271 USD
View
21 more retailers have this diamond
Prices start from $399 NZDSave up to $1,864 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
1.43ct Round
$399 NZD