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1.67ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG538286271

Shape and cutting style on the report: Round brilliant

Certificate IGI LG538286271

Diamond specifications and retailer prices

From $453 USD
As of October 30, 2026
Save $1,223 USD (73%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,676 USD at MOH London · As of October 26, 2026
View at MOH London

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG538286271 or 538286271. Listed at 2 retailers as of October 26, 2026, with prices from $453 to $1,676, a $1,223 spread on the same certified stone. MOH London lists it at $1,676. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538286271
Dimensions7.72 × 7.68 × 4.60 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
7.72 mm7.68 mm1.67 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538286271
Side View
Table 60.0%Crown 32.3°Girdle: MED-STKPavilion 41°CuletDepth 59.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $1,676 USD|Low: $453 USD|High: $1,694 USD|Avg: $1,082 USD|-1.0%
MOH London
Retailer 2
October 30, 2026
Retailer 2$453 USD
MOH London$1,676 USD

4 data points across 2 retailers

2 retailers$453 USD to $1,676 USD

B+
Cheapest Retailer
-
$453 USD
Most Expensive
B
MOH London
LG538286271 · Oct 26
$1,676 USD
£1,320 GBP
View
1 more retailer has this diamond
Prices start from $453 USDSave up to $1,223 USD

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.

B+
1.67ct Round
$453 USD