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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1543770021

Certificate GIA 1543770021

Diamond specifications and retailer prices

From $6,641 SGD
$5,193 USD
As of November 2, 2026
Save $6,416 SGD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $13,057 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1543770021. Listed at 20 retailers as of November 2, 2026, with prices from $6,641 to $13,057, a $6,416 spread on the same certified stone. MOH London lists it at $13,057. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543770021
Dimensions7.59 × 6.22 × 4.30 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizeNone
Top View
7.59 mm6.22 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543770021
Side View
Table 69.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $13,057 SGD|Low: $6,641 SGD|High: $13,215 SGD|Avg: $8,692 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11$6,641 SGD
Retailer 10$7,002 SGD
Retailer 7$7,067 SGD
Retailer 12$7,911 SGD
Retailer 9$8,029 SGD
Retailer 4$8,088 SGD
Retailer 3$8,178 SGD
Retailer 5$8,499 SGD
Retailer 8$8,691 SGD
Retailer 2$9,682 SGD
Retailer 6$10,889 SGD
MOH London$13,057 SGD

43 data points across 12 retailers

20 retailers$6,641 SGD to $13,057 SGD

B+
Cheapest Retailer
-
$6,641 SGD
$5,193 USD
B+
Retailer 2
-
$6,923 SGD
$5,413 USD
View
B+
Retailer 3
-
$7,002 SGD
$5,475 USD
View
B+
Retailer 4
-
$7,095 SGD
$5,548 USD
View
Retailer 5
-
$7,259 SGD
$5,676 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$7,277 SGD
A$8,754 AUD
View
B
Retailer 7
-
$7,911 SGD
$6,186 USD
View
B
Retailer 8
-
$8,029 SGD
$6,278 USD
View
B
Retailer 9
-
$8,088 SGD
CA$8,784 CAD
View
B
Retailer 10
-
$8,178 SGD
A$9,838 AUD
View
B
Retailer 11
-
$8,208 SGD
$6,418 USD
View
B+
Retailer 12
-
$8,499 SGD
£5,233 GBP
View
Retailer 13
-
$8,691 SGD
A$10,455 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$8,773 SGD
$6,860 USD
View
B
Retailer 15
-
$8,773 SGD
$6,860 USD
View
B
Retailer 16
-
$9,067 SGD
$7,090 USD
View
B
Retailer 17
-
$9,682 SGD
€7,210 EUR
View
Retailer 18
-
$9,770 SGD
$7,639 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$10,889 SGD
ZAR 137,544 ZAR
View
Most Expensive
B
MOH London
36872112B · Nov 2
$13,057 SGD
£8,039 GBP
View
19 more retailers have this diamond
Prices start from $6,641 SGDSave up to $6,416 SGD

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+
1.51ct Cushion
$6,641 SGD