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Cushion|Lab Grown|GIA

1.67ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • GIA 6421222639

Certificate GIA 6421222639

Diamond specifications and retailer prices

From $1,325 USD
As of November 2, 2026
Save $1,815 USD (58%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,140 USD at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

About this 1.67ct lab-grown cushion diamond

This 1.67ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6421222639. Listed at 2 retailers as of November 2, 2026, with prices from $1,325 to $3,140, a $1,815 spread on the same certified stone. Do Amore Diamonds lists it at $3,140. 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
F
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6421222639
Dimensions8.01 × 6.51 × 4.37 mm
L/W Ratio1.23
Top View
8.01 mm6.51 mm1.67 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421222639
Side View
Table 60.0%CrownGirdle: STH-THKPavilionCulet: NoneDepth 67.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $3,140 USD|Low: $289 USD|High: $3,800 USD|Avg: $1,473 USD|-17.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 26, 2026
Retailer 4$583 USD
Retailer 6$655 USD
Retailer 5$869 USD
Retailer 3$1,124 USD
Retailer 2$1,325 USD
Do Amore Diamonds$3,140 USD

30 data points across 6 retailers

2 retailers$1,325 USD to $3,140 USD

B
Cheapest Retailer
-
$1,325 USD
Most Expensive
B
Do Amore Diamonds
24-2197-126A · Nov 3
$3,140 USD
View
1 more retailer has this diamond
Prices start from $1,325 USDSave up to $1,815 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 Cushion
$1,325 USD