Cushion|Natural|GIA

1.05ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 1242087047

Certificate GIA 1242087047

Diamond specifications and retailer prices

From $1,485 USD
HK$11,600 HKD
As of October 31, 2026
Save $2,139 USD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,623 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded D 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 1242087047. Listed at 17 retailers as of October 29, 2026, with prices from $1,485 to $3,623, a $2,139 spread on the same certified stone. MOH London lists it at $3,623. 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

1.05
Carat
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242087047
Dimensions5.70 × 5.63 × 3.85 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.70 mm5.63 mm1.05 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242087047
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.3%

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 31
Current: $3,623 USD|Low: $1,472 USD|High: $4,034 USD|Avg: $2,274 USD|-10.2%
MOH London
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 31, 2026
Retailer 11$1,485 USD
Retailer 9$1,670 USD
Retailer 17$1,820 USD
Retailer 10$1,882 USD
Retailer 4$1,919 USD
Retailer 14$1,920 USD
Retailer 3$1,957 USD
Retailer 15$1,991 USD
Retailer 16$2,012 USD
Retailer 8$2,068 USD
Retailer 7$2,129 USD
Retailer 6$2,163 USD
Retailer 2$2,300 USD
Retailer 13$2,528 USD
Retailer 12$2,809 USD
Retailer 5$3,188 USD
MOH London$3,623 USD

18 data points across 17 retailers

17 retailers$1,485 USD to $3,623 USD

A
Cheapest Retailer
-
$1,485 USD
HK$11,600 HKD
Retailer 2
-
$1,670 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$1,820 USD
€1,734 EUR
View
A
Retailer 4
-
$1,882 USD
View
Final sale: no returns
A
Retailer 5
-
$1,919 USD
View
A
Retailer 6
-
$1,920 USD
View
A
Retailer 7
-
$1,957 USD
View
A
Retailer 8
-
$1,991 USD
£1,568 GBP
View
A
Retailer 9
-
$2,012 USD
£1,585 GBP
View
A
Retailer 10
-
$2,068 USD
SGD 2,794 SGD
View
A
Retailer 11
-
$2,129 USD
View
A
Retailer 12
-
$2,163 USD
View
A
Retailer 13
-
$2,300 USD
View
A
Retailer 14
-
$2,528 USD
ZAR 40,843 ZAR
View
B+
Retailer 15
-
$2,809 USD
€2,675 EUR
View
B+
Retailer 16
-
$3,188 USD
View
Most Expensive
B+
MOH London
CECF82447 · Oct 29
$3,623 USD
£2,853 GBP
View
16 more retailers have this diamond
Prices start from $1,485 USDSave up to $2,139 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
1.05ct Cushion
$1,485 USD