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Oval|Lab Grown|IGI

0.33ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG816670231

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816670231

Diamond specifications and retailer prices

From $184 USD
£145 GBP
As of October 30, 2026
Save $207 USD (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $759 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.33ct lab-grown oval diamond

This 0.33ct lab-grown oval sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816670231 or 816670231. Listed at 6 retailers as of October 29, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.33
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816670231
Dimensions5.46 × 3.97 × 2.35 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.46 mm3.97 mm0.33 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816670231
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 38.3°CuletDepth 59.2%

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 30
Current: $759 USD|Low: $171 USD|High: $765 USD|Avg: $335 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2$184 USD
Retailer 4$203 USD
Retailer 5$222 USD
Retailer 3$264 USD
Retailer 6$329 USD
Retailer 7$390 USD
MOH London$759 USD

41 data points across 7 retailers

6 retailers$184 USD to $390 USD

A
Cheapest Retailer
-
$184 USD
£145 GBP
B+
Retailer 2
-
$222 USD
View
B+
Retailer 3
-
$264 USD
£208 GBP
View
B
Retailer 4
-
$329 USD
View
B
Retailer 5
-
$390 USD
View
Most Expensive
MOH London
LG816670231 · Oct 29
$759 USD
£598 GBP
View
Price under review
5 more retailers have this diamond
Prices start from $184 USDSave up to $207 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
0.33ct Oval
$184 USD