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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 $386 SGD
$302 USD
As of October 29, 2026
Save $1,186 SGD (75%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,572 SGD 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 $386 to $1,572, a $1,186 spread on the same certified stone. Brilliant Earth lists it at $1,572. 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 29
Current: $1,572 SGD|Low: $248 SGD|High: $1,624 SGD|Avg: $839 SGD|-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$361 SGD
Retailer 4$381 SGD
Retailer 11$547 SGD
Retailer 7$646 SGD
Retailer 3$706 SGD
Retailer 13$711 SGD
Retailer 6$733 SGD
Retailer 2$779 SGD
Retailer 5$850 SGD
Retailer 8$1,195 SGD
Retailer 10$1,246 SGD
Retailer 9$1,557 SGD
Brilliant Earth$1,572 SGD

44 data points across 13 retailers

22 retailers$386 SGD to $1,572 SGD

Retailer 1
-
$312 SGD
$244 USD
Price last confirmed 32 days ago
Retailer 2
-
$362 SGD
$283 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$362 SGD
$283 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$381 SGD
$298 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
$386 SGD
$302 USD
View
Retailer 6
-
$386 SGD
$302 USD
View
Price last confirmed 20 days ago
Retailer 7
-
$386 SGD
$302 USD
View
Price last confirmed 28 days ago
A
Retailer 8
-
$458 SGD
HK$2,800 HKD
View
B+
Retailer 9
-
$547 SGD
$428 USD
View
A
Retailer 10
-
$646 SGD
€481 EUR
View
B+
Retailer 11
-
$706 SGD
$552 USD
View
B+
Retailer 12
-
$711 SGD
$556 USD
View
B+
Retailer 13
-
$733 SGD
£452 GBP
View
B+
Retailer 14
-
$779 SGD
A$938 AUD
View
B+
Retailer 15
-
$850 SGD
$665 USD
View
Retailer 16
-
$1,195 SGD
$935 USD
View
Price last confirmed 12 days ago
Retailer 17
-
$1,243 SGD
$972 USD
View
Price last confirmed 21 days ago
Retailer 18
-
$1,243 SGD
$972 USD
View
Price last confirmed 30 days ago
B
Retailer 19
-
$1,246 SGD
$975 USD
View
B
Retailer 20
-
$1,308 SGD
View
Retailer 21
-
$1,557 SGD
£959 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
7306134A · Oct 29
$1,572 SGD
$1,230 USD
View
21 more retailers have this diamond
Prices start from $386 SGDSave up to $1,186 SGD

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
$386 SGD