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Round|Lab Grown|IGI

1.81ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG818658778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658778

Diamond specifications and retailer prices

From $495 SGD
$386 USD
As of October 28, 2026
Save $3,722 SGD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,217 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818658778 or 818658778. Listed at 21 retailers as of October 28, 2026, with prices from $495 to $4,217, a $3,722 spread on the same certified stone. Brilliant Earth lists it at $4,217. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658778
Dimensions7.81 × 7.87 × 4.83 mm
L/W Ratio1.01
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
7.81 mm7.87 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658778
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 28
Current: $4,217 SGD|Low: $495 SGD|High: $4,217 SGD|Avg: $1,542 SGD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 5$495 SGD
Retailer 15$775 SGD
Retailer 17$788 SGD
Retailer 12$831 SGD
Retailer 10$888 SGD
Retailer 14$945 SGD
Retailer 2$985 SGD
Retailer 6$1,250 SGD
Retailer 13$1,276 SGD
Retailer 3$1,560 SGD
Retailer 8$1,635 SGD
Retailer 7$1,821 SGD
Retailer 4$1,937 SGD
Retailer 16$2,127 SGD
Retailer 11$2,160 SGD
Retailer 9$3,320 SGD
Brilliant Earth$4,217 SGD

27 data points across 17 retailers

21 retailers$495 SGD to $4,217 SGD

Retailer 1
-
$450 SGD
$351 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$495 SGD
$386 USD
View
Final sale: no returns
Retailer 3
-
$558 SGD
$435 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$558 SGD
$435 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$775 SGD
$605 USD
View
A
Retailer 6
-
$788 SGD
$615 USD
View
A
Retailer 7
-
$831 SGD
£510 GBP
View
A
Retailer 8
-
$888 SGD
€660 EUR
View
A
Retailer 9
-
$945 SGD
ZAR 11,907 ZAR
View
A
Retailer 10
-
$985 SGD
£605 GBP
View
A
Retailer 11
-
$1,250 SGD
$975 USD
View
A
Retailer 12
-
$1,276 SGD
A$1,532 AUD
View
A
Retailer 13
-
$1,560 SGD
$1,217 USD
View
B+
Retailer 14
-
$1,635 SGD
$1,276 USD
View
Retailer 15
-
$1,792 SGD
$1,398 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$1,821 SGD
$1,421 USD
View
B+
Retailer 17
-
$1,937 SGD
$1,511 USD
View
B+
Retailer 18
-
$2,127 SGD
$1,659 USD
View
B+
Retailer 19
-
$2,160 SGD
£1,327 GBP
View
B
Retailer 20
-
$3,320 SGD
$2,590 USD
View
Most Expensive
B
Brilliant Earth
21580806A · Oct 29
$4,217 SGD
$3,290 USD
View
20 more retailers have this diamond
Prices start from $495 SGDSave up to $3,722 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 Round
$495 SGD