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Oval|Lab Grown|IGI

0.91ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG650403959

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG650403959

Diamond specifications and retailer prices

From $140 USD
As of October 27, 2026
Save $168 USD (54%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $308 USD at Diamond Heaven · As of October 28, 2026
View at Diamond Heaven

About this 0.91ct lab-grown oval diamond

This 0.91ct lab-grown oval sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650403959 or 650403959. Listed at 3 retailers as of October 27, 2026, with prices from $140 to $308, a $168 spread on the same certified stone. Diamond Heaven lists it at $308. 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

0.91
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650403959
Dimensions7.75 × 5.47 × 3.41 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.75 mm5.47 mm0.91 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650403959
Side View
Table 60.0%Crown 34.8°Girdle: MED-STKPavilion 41.2°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 27
Current: $308 USD|Low: $140 USD|High: $640 USD|Avg: $402 USD
Diamond Heaven
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 3$140 USD
Retailer 2$179 USD
Diamond Heaven$308 USD
Retailer 4$330 USD
Retailer 8$368 USD
Retailer 7$476 USD
Retailer 9$503 USD
Retailer 6$611 USD
Retailer 5$640 USD

2 data points across 9 retailers

3 retailers$140 USD to $308 USD

A
Cheapest Retailer
-
$140 USD
A
Retailer 2
-
$179 USD
HK$1,400 HKD
View
Most Expensive
B+
Diamond Heaven
0.91SI1DLG59C1A2N · Oct 28
$308 USD
£242 GBP
View
2 more retailers have this diamond
Prices start from $140 USDSave up to $168 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
0.91ct Oval
$140 USD