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Oval|Lab Grown|IGI

1.59ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG578326356

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG578326356

Diamond specifications and retailer prices

From €270 EUR
$302 USD
As of October 31, 2026
Save €831 EUR (75%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,101 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.59ct lab-grown oval diamond

This 1.59ct 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 LG578326356 or 578326356. Listed at 22 retailers as of October 29, 2026, with prices from €270 to €1,101, a €831 spread on the same certified stone. Brilliant Earth lists it at €1,101. 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

1.59
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578326356
Dimensions9.22 × 6.60 × 4.14 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
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
9.22 mm6.60 mm1.59 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578326356
Side View
Table 59.0%Crown 37.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.7%

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 31
Current: €1,101 EUR|Low: €174 EUR|High: €1,137 EUR|Avg: €595 EUR|-3.1%
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
October 31, 2026
Retailer 12€252 EUR
Retailer 4€267 EUR
Retailer 11€383 EUR
Retailer 7€452 EUR
Retailer 3€494 EUR
Retailer 13€498 EUR
Retailer 2€514 EUR
Retailer 6€546 EUR
Retailer 5€595 EUR
Retailer 8€837 EUR
Retailer 10€873 EUR
Retailer 9€1,090 EUR
Brilliant Earth€1,101 EUR

43 data points across 13 retailers

22 retailers€270 EUR to €1,101 EUR

Retailer 1
-
€218 EUR
$244 USD
Price last confirmed 33 days ago
Retailer 2
-
€253 EUR
$283 USD
View
Price last confirmed 18 days ago
Retailer 3
-
€253 EUR
$283 USD
View
Price last confirmed 35 days ago
Retailer 4
-
€267 EUR
$298 USD
View
Price last confirmed 32 days ago
A
Retailer 5
-
€270 EUR
$302 USD
View
Retailer 6
-
€270 EUR
$302 USD
View
Price last confirmed 21 days ago
Retailer 7
-
€270 EUR
$302 USD
View
Price last confirmed 29 days ago
A
Retailer 8
-
€321 EUR
HK$2,800 HKD
View
B+
Retailer 9
-
€383 EUR
$428 USD
View
A
Retailer 10
-
€452 EUR
View
B+
Retailer 11
-
€494 EUR
$552 USD
View
B+
Retailer 12
-
€498 EUR
$556 USD
View
B+
Retailer 13
-
€514 EUR
£452 GBP
View
B+
Retailer 14
-
€546 EUR
A$938 AUD
View
B+
Retailer 15
-
€595 EUR
$665 USD
View
Retailer 16
-
€837 EUR
$935 USD
View
Price last confirmed 13 days ago
Retailer 17
-
€870 EUR
$972 USD
View
Price last confirmed 21 days ago
Retailer 18
-
€870 EUR
$972 USD
View
Price last confirmed 31 days ago
B
Retailer 19
-
€873 EUR
$975 USD
View
B
Retailer 20
-
€916 EUR
SGD 1,383 SGD
View
Retailer 21
-
€1,090 EUR
£959 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
7306134A · Oct 29
€1,101 EUR
$1,230 USD
View
21 more retailers have this diamond
Prices start from €270 EURSave up to €831 EUR

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
1.59ct Oval
€270 EUR