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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 $224 USD
As of October 29, 2026
Save $1,047 USD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,271 USD 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 $224 to $1,271, a $1,047 spread on the same certified stone. Reve Diamonds lists it at $1,271. 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
Color
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

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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: $543 USD|Low: $222 USD|High: $1,271 USD|Avg: $578 USD|+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$224 USD
Retailer 12$251 USD
Retailer 15$260 USD
Retailer 3$278 USD
Retailer 4$278 USD
Retailer 5$473 USD
Retailer 17$511 USD
Retailer 11$516 USD
Retailer 14$526 USD
Retailer 2$528 USD
Retailer 1$543 USD
Retailer 16$564 USD
Retailer 18$590 USD
Retailer 6$760 USD
Retailer 9$894 USD
Retailer 7$947 USD
Retailer 10$1,000 USD
Retailer 13$1,120 USD
Reve Diamonds$1,271 USD

34 data points across 19 retailers

22 retailers$224 USD to $1,271 USD

Retailer 1
-
$222 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$224 USD
View
A
Retailer 3
-
$251 USD
View
Final sale: no returns
A
Retailer 4
-
$260 USD
View
Retailer 5
-
$272 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$278 USD
View
A
Retailer 7
-
$278 USD
View
B+
Retailer 8
-
$473 USD
View
B+
Retailer 9
-
$511 USD
View
B+
Retailer 10
-
$516 USD
£406 GBP
View
B+
Retailer 11
-
$526 USD
€501 EUR
View
B+
Retailer 12
-
$528 USD
View
B+
Retailer 13
-
$543 USD
£428 GBP
View
B+
Retailer 14
-
$564 USD
A$868 AUD
View
B+
Retailer 15
-
$590 USD
View
B
Retailer 16
-
$760 USD
View
Retailer 17
-
$886 USD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$894 USD
View
B
Retailer 19
-
$947 USD
View
B
Retailer 20
-
$1,000 USD
View
B
Retailer 21
-
$1,120 USD
£882 GBP
View
Most Expensive
B
Reve Diamonds
9E01CE85A · Oct 30
$1,271 USD
View
21 more retailers have this diamond
Prices start from $224 USDSave up to $1,047 USD

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
$224 USD