CaratHunter
Plans
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 $638 AUD
$448 USD
As of October 29, 2026
Save $4,644 AUD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,282 AUD 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 15 retailers as of October 29, 2026, with prices from $638 to $5,282, a $4,644 spread on the same certified stone. Brilliant Earth lists it at $5,282. 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

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: $5,282 AUD|Low: $612 AUD|High: $5,922 AUD|Avg: $1,934 AUD|-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 30, 2026
Retailer 4$638 AUD
Retailer 10$715 AUD
Retailer 14$792 AUD
Retailer 15$792 AUD
Retailer 5$1,092 AUD
Retailer 16$1,196 AUD
Retailer 6$1,243 AUD
Retailer 2$1,309 AUD
Retailer 13$1,314 AUD
Retailer 7$1,354 AUD
Retailer 11$2,127 AUD
Retailer 8$2,527 AUD
Retailer 3$2,544 AUD
Retailer 9$2,923 AUD
Retailer 12$4,285 AUD
Brilliant Earth$5,282 AUD

40 data points across 16 retailers

15 retailers$638 AUD to $5,282 AUD

A
Cheapest Retailer
-
$638 AUD
$448 USD
A
Retailer 2
-
$715 AUD
$502 USD
View
A
Retailer 3
-
$792 AUD
$556 USD
View
Retailer 4
-
$792 AUD
$556 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$1,092 AUD
£604 GBP
View
Price last confirmed 18 days ago
A
Retailer 6
-
$1,196 AUD
$840 USD
View
B+
Retailer 7
-
$1,243 AUD
$873 USD
View
A
Retailer 8
-
$1,309 AUD
£724 GBP
View
A
Retailer 9
-
$1,354 AUD
$951 USD
View
B+
Retailer 10
-
$2,127 AUD
$1,494 USD
View
B+
Retailer 11
-
$2,527 AUD
$1,775 USD
View
B+
Retailer 12
-
$2,544 AUD
$1,787 USD
View
B+
Retailer 13
-
$2,923 AUD
£1,617 GBP
View
B
Retailer 14
-
$4,285 AUD
$3,010 USD
View
Most Expensive
B
Brilliant Earth
13120725A · Oct 29
$5,282 AUD
$3,710 USD
View
14 more retailers have this diamond
Prices start from $638 AUDSave up to $4,644 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
3.57ct Oval
$638 AUD