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Round|Lab Grown|IGI

1.67ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG764636382

Shape and cutting style on the report: Round brilliant

Certificate IGI LG764636382

Diamond specifications and retailer prices

From $296 SGD
$231 USD
As of October 29, 2026
Save $1,180 SGD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,589 SGD at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

About this 1.67ct lab-grown round diamond

This 1.67ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG764636382 or 764636382. Listed at 17 retailers as of October 29, 2026, with a 399% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.67
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764636382
Dimensions7.63 × 7.65 × 4.68 mm
L/W Ratio1.00
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
7.63 mm7.65 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764636382
Side View
Table 58.0%Crown 34.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.2%

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 29
Current: $1,589 SGD|Low: $283 SGD|High: $1,628 SGD|Avg: $708 SGD|-2.4%
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
October 29, 2026
Retailer 13$296 SGD
Retailer 3$331 SGD
Retailer 5$342 SGD
Retailer 14$367 SGD
Retailer 12$493 SGD
Retailer 9$607 SGD
Retailer 8$636 SGD
Retailer 2$687 SGD
Retailer 4$699 SGD
Retailer 11$936 SGD
Retailer 10$948 SGD
Retailer 6$1,178 SGD
Retailer 7$1,476 SGD
Brilliant Earth$1,589 SGD

43 data points across 14 retailers

17 retailers$296 SGD to $1,476 SGD

A
Cheapest Retailer
-
$296 SGD
$231 USD
A
Retailer 2
-
$331 SGD
$258 USD
View
Final sale: no returns
A
Retailer 3
-
$342 SGD
$267 USD
View
A
Retailer 4
-
$367 SGD
$286 USD
View
A
Retailer 5
-
$367 SGD
$286 USD
View
B+
Retailer 6
-
$493 SGD
$385 USD
View
A
Retailer 7
-
$607 SGD
€451 EUR
View
A
Retailer 8
-
$636 SGD
£391 GBP
View
A
Retailer 9
-
$652 SGD
$509 USD
View
A
Retailer 10
-
$687 SGD
£422 GBP
View
B+
Retailer 11
-
$699 SGD
$545 USD
View
B+
Retailer 12
-
$936 SGD
$730 USD
View
Retailer 13
-
$948 SGD
$740 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$1,178 SGD
$919 USD
View
B
Retailer 15
-
$1,245 SGD
$972 USD
View
B
Retailer 16
-
$1,476 SGD
£907 GBP
View
Most Expensive
Brilliant Earth
21313425A · Oct 22
$1,589 SGD
$1,240 USD
View
Price last confirmed 7 days ago
16 more retailers have this diamond
Prices start from $296 SGDSave up to $1,180 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
1.67ct Round
$296 SGD