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Oval|Lab Grown|IGI

1.09ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG770640922

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770640922

Diamond specifications and retailer prices

From $316 NZD
$178 USD
As of October 29, 2026
Save $1,675 NZD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,991 NZD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.09ct lab-grown oval diamond

This 1.09ct lab-grown oval 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 LG770640922 or 770640922. Listed at 19 retailers as of October 29, 2026, with prices from $316 to $1,991, a $1,675 spread on the same certified stone. Reve Diamonds lists it at $1,991. 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

1.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770640922
Dimensions8.51 × 5.85 × 3.52 mm
L/W Ratio1.45
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
8.51 mm5.85 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770640922
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.2%

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: $702 NZD|Low: $247 NZD|High: $1,991 NZD|Avg: $917 NZD|+5.6%
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
Reve Diamonds
October 30, 2026
Retailer 5$316 NZD
Retailer 3$353 NZD
Retailer 11$366 NZD
Retailer 7$390 NZD
Retailer 16$390 NZD
Retailer 13$601 NZD
Retailer 15$694 NZD
Retailer 1$702 NZD
Retailer 10$749 NZD
Retailer 14$822 NZD
Retailer 12$886 NZD
Retailer 2$1,027 NZD
Retailer 8$1,047 NZD
Retailer 4$1,256 NZD
Retailer 6$1,353 NZD
Retailer 9$1,836 NZD
Reve Diamonds$1,991 NZD

45 data points across 17 retailers

19 retailers$316 NZD to $1,991 NZD

Retailer 1
-
$312 NZD
$176 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$316 NZD
$178 USD
View
A
Retailer 3
-
$353 NZD
$199 USD
View
Final sale: no returns
A
Retailer 4
-
$366 NZD
$206 USD
View
Retailer 5
-
$383 NZD
$216 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$390 NZD
$220 USD
View
A
Retailer 7
-
$390 NZD
$220 USD
View
A
Retailer 8
-
$601 NZD
$339 USD
View
A
Retailer 9
-
$694 NZD
$391 USD
View
A
Retailer 10
-
$702 NZD
£312 GBP
View
B+
Retailer 11
-
$749 NZD
€402 EUR
View
B+
Retailer 12
-
$822 NZD
$463 USD
View
B+
Retailer 13
-
$886 NZD
A$768 AUD
View
B
Retailer 14
-
$1,027 NZD
$579 USD
View
B+
Retailer 15
-
$1,047 NZD
$590 USD
View
B
Retailer 16
-
$1,256 NZD
$708 USD
View
B
Retailer 17
-
$1,353 NZD
$762 USD
View
B
Retailer 18
-
$1,836 NZD
£815 GBP
View
Most Expensive
B
Reve Diamonds
050915544 · Oct 30
$1,991 NZD
$1,122 USD
View
18 more retailers have this diamond
Prices start from $316 NZDSave up to $1,675 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
1.09ct Oval
$316 NZD