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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 $448 USD
As of October 29, 2026
Save $3,262 USD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,710 USD 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 $448 to $3,710, a $3,262 spread on the same certified stone. Brilliant Earth lists it at $3,710. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,710 USD|Low: $430 USD|High: $4,160 USD|Avg: $1,358 USD|-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$448 USD
Retailer 10$502 USD
Retailer 14$556 USD
Retailer 15$556 USD
Retailer 5$767 USD
Retailer 16$840 USD
Retailer 6$873 USD
Retailer 2$920 USD
Retailer 13$923 USD
Retailer 7$951 USD
Retailer 11$1,494 USD
Retailer 8$1,775 USD
Retailer 3$1,787 USD
Retailer 9$2,054 USD
Retailer 12$3,010 USD
Brilliant Earth$3,710 USD

40 data points across 16 retailers

15 retailers$448 USD to $3,710 USD

A
Cheapest Retailer
-
$448 USD
A
Retailer 2
-
$502 USD
View
A
Retailer 3
-
$556 USD
View
Retailer 4
-
$556 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$767 USD
£604 GBP
View
Price last confirmed 18 days ago
A
Retailer 6
-
$840 USD
View
B+
Retailer 7
-
$873 USD
View
A
Retailer 8
-
$920 USD
£724 GBP
View
A
Retailer 9
-
$951 USD
View
B+
Retailer 10
-
$1,494 USD
View
B+
Retailer 11
-
$1,775 USD
View
B+
Retailer 12
-
$1,787 USD
View
B+
Retailer 13
-
$2,054 USD
£1,617 GBP
View
B
Retailer 14
-
$3,010 USD
View
Most Expensive
B
Brilliant Earth
13120725A · Oct 29
$3,710 USD
View
14 more retailers have this diamond
Prices start from $448 USDSave up to $3,262 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
3.57ct Oval
$448 USD