Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6561091209

Certificate GIA 6561091209

Diamond specifications and retailer prices

From $2,828 USD
As of October 30, 2026
Save $2,481 USD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,309 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct 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 6561091209. Listed at 14 retailers as of October 29, 2026, with prices from $2,828 to $5,309, a $2,481 spread on the same certified stone. MOH London lists it at $5,309. 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

1.00
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561091209
Dimensions5.60 × 5.47 × 3.77 mm
L/W Ratio1.02
Top View
5.60 mm5.47 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561091209
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,309 USD|Low: $2,671 USD|High: $5,344 USD|Avg: $3,410 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 12$2,828 USD
Retailer 9$2,830 USD
Retailer 10$2,878 USD
Retailer 4$2,883 USD
Retailer 8$2,885 USD
Retailer 11$2,914 USD
Retailer 7$3,089 USD
Retailer 6$3,299 USD
Retailer 3$3,373 USD
Retailer 5$3,696 USD
Retailer 2$3,881 USD
MOH London$5,309 USD

36 data points across 12 retailers

14 retailers$2,828 USD to $5,309 USD

B+
Cheapest Retailer
-
$2,828 USD
B+
Retailer 2
-
$2,830 USD
View
B+
Retailer 3
-
$2,878 USD
View
B+
Retailer 4
-
$2,883 USD
View
B+
Retailer 5
-
$2,885 USD
View
B+
Retailer 6
-
$2,914 USD
View
Final sale: no returns
B+
Retailer 7
-
$3,089 USD
£2,432 GBP
View
B+
Retailer 8
-
$3,275 USD
SGD 4,425 SGD
View
B+
Retailer 9
-
$3,299 USD
£2,598 GBP
View
B+
Retailer 10
-
$3,301 USD
View
Retailer 11
-
$3,373 USD
A$5,189 AUD
View
Price last confirmed 23 days ago
B
Retailer 12
-
$3,696 USD
€3,520 EUR
View
B
Retailer 13
-
$3,881 USD
ZAR 62,697 ZAR
View
Most Expensive
B
MOH London
D9960B846 · Oct 29
$5,309 USD
£4,180 GBP
View
13 more retailers have this diamond
Prices start from $2,828 USDSave up to $2,481 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+
1.00ct Cushion
$2,828 USD