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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 HK$3,272 HKD
$417 USD
As of October 30, 2026
Save HK$6,967 HKD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$10,239 HKD 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 HK$3,272 to HK$10,239, a HK$6,967 spread on the same certified stone. Rare Carat lists it at HK$10,239. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$10,239 HKD|Low: HK$1,867 HKD|High: HK$11,064 HKD|Avg: HK$5,676 HKD|-7.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6HK$1,867 HKD
Retailer 5HK$3,272 HKD
Retailer 2HK$3,401 HKD
Retailer 7HK$5,233 HKD
Retailer 4HK$6,025 HKD
Retailer 8HK$6,426 HKD
Retailer 9HK$6,427 HKD
Retailer 3HK$8,778 HKD
Rare CaratHK$10,239 HKD

40 data points across 9 retailers

12 retailersHK$3,272 HKD to HK$10,239 HKD

Retailer 1
-
HK$1,444 HKD
$184 USD
Price last confirmed 29 days ago
Retailer 2
-
HK$1,750 HKD
$223 USD
View
Price last confirmed 35 days ago
Retailer 3
-
HK$1,867 HKD
$238 USD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
HK$3,272 HKD
$417 USD
View
A
Retailer 5
-
HK$3,401 HKD
£341 GBP
View
B+
Retailer 6
-
HK$5,233 HKD
$667 USD
View
Retailer 7
-
HK$6,002 HKD
$765 USD
View
Price last confirmed 31 days ago
B
Retailer 8
-
HK$6,025 HKD
$768 USD
View
B
Retailer 9
-
HK$6,426 HKD
$819 USD
View
B
Retailer 10
-
HK$6,427 HKD
View
B
Retailer 11
-
HK$8,778 HKD
£881 GBP
View
Most Expensive
B
Rare Carat
512221639_l_512221639 · Oct 28
HK$10,239 HKD
$1,305 USD
View
11 more retailers have this diamond
Prices start from HK$3,272 HKDSave up to HK$6,967 HKD

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
HK$3,272 HKD