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Round|Lab Grown|IGI

1.67ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG649471777

Shape and cutting style on the report: Round brilliant

Certificate IGI LG649471777

Diamond specifications and retailer prices

From $201 USD
As of October 29, 2026
Save $1,919 USD (91%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,120 USD at Jared · As of October 28, 2026
View at Jared

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 LG649471777 or 649471777. Listed at 11 retailers as of October 28, 2026, with prices from $201 to $2,120, a $1,919 spread on the same certified stone. Jared lists it at $2,120. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649471777
Dimensions7.65 × 7.68 × 4.60 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.65 mm7.68 mm1.67 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649471777
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
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: $432 USD|Low: $170 USD|High: $2,000 USD|Avg: $702 USD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 11$201 USD
Retailer 12$228 USD
Retailer 10$233 USD
Retailer 1$432 USD
Retailer 9$433 USD
Retailer 3$554 USD
Retailer 4$608 USD
Retailer 2$617 USD
Retailer 6$805 USD
Retailer 7$886 USD
Retailer 5$1,105 USD
Retailer 8$1,930 USD

37 data points across 12 retailers

11 retailers$201 USD to $2,120 USD

A
Cheapest Retailer
-
$201 USD
A
Retailer 2
-
$228 USD
View
Final sale: no returns
A
Retailer 3
-
$233 USD
View
A
Retailer 4
-
$432 USD
£340 GBP
View
B+
Retailer 5
-
$433 USD
View
B+
Retailer 6
-
$805 USD
View
B+
Retailer 7
-
$886 USD
View
B
Retailer 8
-
$1,105 USD
£870 GBP
View
B
Retailer 9
-
$1,470 USD
View
B
Retailer 10
-
$1,930 USD
View
Most Expensive
B
Jared
152403040 · Oct 28
$2,120 USD
View
10 more retailers have this diamond
Prices start from $201 USDSave up to $1,919 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.

A
1.67ct Round
$201 USD