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Oval|Lab Grown|IGI

3.57ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG681548099

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG681548099

Diamond specifications and retailer prices

From $795 NZD
$448 USD
As of October 29, 2026
Save $5,788 NZD (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,583 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.57ct lab-grown oval diamond

This 3.57ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681548099 or 681548099. Listed at 16 retailers as of October 29, 2026, with prices from $795 to $6,583, a $5,788 spread on the same certified stone. Brilliant Earth lists it at $6,583. 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

3.57
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681548099
Dimensions12.17 × 8.70 × 5.42 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.17 mm8.70 mm3.57 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681548099
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.3%

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: $6,583 NZD|Low: $763 NZD|High: $7,381 NZD|Avg: $2,400 NZD|-10.8%
Brilliant Earth
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 31, 2026
Retailer 4$795 NZD
Retailer 11$891 NZD
Retailer 14$987 NZD
Retailer 15$987 NZD
Retailer 5$1,361 NZD
Retailer 16$1,490 NZD
Retailer 2$1,543 NZD
Retailer 6$1,549 NZD
Retailer 9$1,618 NZD
Retailer 7$1,687 NZD
Retailer 12$2,651 NZD
Retailer 8$3,149 NZD
Retailer 3$3,171 NZD
Retailer 10$3,644 NZD
Retailer 13$5,341 NZD
Brilliant Earth$6,583 NZD

40 data points across 16 retailers

16 retailers$795 NZD to $6,583 NZD

A
Cheapest Retailer
-
$795 NZD
$448 USD
A
Retailer 2
-
$891 NZD
$502 USD
View
A
Retailer 3
-
$987 NZD
$556 USD
View
Retailer 4
-
$987 NZD
$556 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$1,361 NZD
£604 GBP
View
Price last confirmed 19 days ago
A
Retailer 6
-
$1,490 NZD
$840 USD
View
A
Retailer 7
-
$1,543 NZD
€828 EUR
View
B+
Retailer 8
-
$1,549 NZD
$873 USD
View
A
Retailer 9
-
$1,618 NZD
£718 GBP
View
A
Retailer 10
-
$1,687 NZD
$951 USD
View
B+
Retailer 11
-
$2,651 NZD
$1,494 USD
View
B+
Retailer 12
-
$3,149 NZD
$1,775 USD
View
B+
Retailer 13
-
$3,171 NZD
$1,787 USD
View
B+
Retailer 14
-
$3,644 NZD
£1,617 GBP
View
B
Retailer 15
-
$5,341 NZD
$3,010 USD
View
Most Expensive
B
Brilliant Earth
13120725A · Oct 29
$6,583 NZD
$3,710 USD
View
15 more retailers have this diamond
Prices start from $795 NZDSave up to $5,788 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
3.57ct Oval
$795 NZD