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Oval|Lab Grown|IGI

1.81ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG512221639

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG512221639

Diamond specifications and retailer prices

From $533 SGD
$417 USD
As of October 30, 2026
Save $1,135 SGD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,668 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.81ct lab-grown oval diamond

This 1.81ct 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 very-good cut grade and certified by IGI LG512221639 or 512221639. Listed at 12 retailers as of October 28, 2026, with prices from $533 to $1,668, a $1,135 spread on the same certified stone. Rare Carat lists it at $1,668. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.81
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512221639
Dimensions9.52 × 6.80 × 4.30 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
9.52 mm6.80 mm1.81 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512221639
Side View
Table 60.5%Crown 36.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.2%

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 30
Current: $1,668 SGD|Low: $304 SGD|High: $1,803 SGD|Avg: $925 SGD|-7.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6$304 SGD
Retailer 5$533 SGD
Retailer 2$554 SGD
Retailer 7$853 SGD
Retailer 4$982 SGD
Retailer 8$1,047 SGD
Retailer 9$1,047 SGD
Retailer 3$1,430 SGD
Rare Carat$1,668 SGD

40 data points across 9 retailers

12 retailers$533 SGD to $1,668 SGD

Retailer 1
-
$235 SGD
$184 USD
Price last confirmed 29 days ago
Retailer 2
-
$285 SGD
$223 USD
View
Price last confirmed 35 days ago
Retailer 3
-
$304 SGD
$238 USD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
$533 SGD
$417 USD
View
A
Retailer 5
-
$554 SGD
£341 GBP
View
B+
Retailer 6
-
$853 SGD
$667 USD
View
Retailer 7
-
$978 SGD
$765 USD
View
Price last confirmed 31 days ago
B
Retailer 8
-
$982 SGD
$768 USD
View
B
Retailer 9
-
$1,047 SGD
$819 USD
View
B
Retailer 10
-
$1,047 SGD
HK$6,400 HKD
View
B
Retailer 11
-
$1,430 SGD
£881 GBP
View
Most Expensive
B
Rare Carat
512221639_l_512221639 · Oct 28
$1,668 SGD
$1,305 USD
View
11 more retailers have this diamond
Prices start from $533 SGDSave up to $1,135 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
1.81ct Oval
$533 SGD