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Oval|Lab Grown|IGI

1.58ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG789633250

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG789633250

Diamond specifications and retailer prices

From $202 USD
As of October 26, 2026
Save $1,018 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,220 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.58ct lab-grown oval diamond

This 1.58ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG789633250 or 789633250. Listed at 19 retailers as of October 26, 2026, with prices from $202 to $1,220, a $1,018 spread on the same certified stone. Brilliant Earth lists it at $1,220. 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

1.58
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789633250
Dimensions9.70 × 6.50 × 3.97 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.70 mm6.50 mm1.58 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789633250
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 61.1%

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 26
Current: $1,220 USD|Low: $194 USD|High: $1,220 USD|Avg: $564 USD
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
Retailer 17
Retailer 18
October 27, 2026
Retailer 16$202 USD
Retailer 7$225 USD
Retailer 14$234 USD
Retailer 15$251 USD
Retailer 2$280 USD
Retailer 13$282 USD
Retailer 18$408 USD
Retailer 4$435 USD
Retailer 11$457 USD
Retailer 8$510 USD
Retailer 6$538 USD
Retailer 9$544 USD
Retailer 5$649 USD
Retailer 3$806 USD
Retailer 10$814 USD
Retailer 17$985 USD
Retailer 12$1,173 USD
Brilliant Earth$1,220 USD

40 data points across 18 retailers

19 retailers$202 USD to $1,220 USD

A
Cheapest Retailer
-
$202 USD
A
Retailer 2
-
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$234 USD
View
A
Retailer 4
-
$251 USD
View
A
Retailer 5
-
$280 USD
£220 GBP
View
A
Retailer 6
-
$282 USD
HK$2,200 HKD
View
A
Retailer 7
-
$408 USD
€389 EUR
View
B+
Retailer 8
-
$435 USD
View
A
Retailer 9
-
$457 USD
£360 GBP
View
A
Retailer 10
-
$510 USD
View
B+
Retailer 11
-
$538 USD
A$828 AUD
View
B+
Retailer 12
-
$544 USD
View
B+
Retailer 13
-
$649 USD
View
B+
Retailer 14
-
$806 USD
View
B+
Retailer 15
-
$814 USD
SGD 1,100 SGD
View
Retailer 16
-
$920 USD
View
Price last confirmed 8 days ago
Retailer 17
-
$985 USD
View
Price last confirmed 11 days ago
B
Retailer 18
-
$1,173 USD
£924 GBP
View
Most Expensive
B
Brilliant Earth
18521721A · Oct 29
$1,220 USD
View
18 more retailers have this diamond
Prices start from $202 USDSave up to $1,018 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
1.58ct Oval
$202 USD