CaratHunter
Plans
Cushion|Natural|GIA

1.31ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 1395417930

Certificate GIA 1395417930

Diamond specifications and retailer prices

From $3,346 SGD
As of November 4, 2026
Save $3,928 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,274 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.31ct natural cushion diamond

This 1.31ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1395417930. Listed at 15 retailers as of November 4, 2026, with prices from $3,346 to $7,274, a $3,928 spread on the same certified stone. MOH London lists it at $7,274. 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

1.31
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1395417930
Dimensions6.50 × 6.13 × 4.21 mm
L/W Ratio1.06
Culet sizeNone
Top View
6.50 mm6.13 mm1.31 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1395417930
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.6%

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 4
Current: $7,274 SGD|Low: $3,421 SGD|High: $7,381 SGD|Avg: $4,507 SGD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10$3,421 SGD
Retailer 5$3,441 SGD
Retailer 6$3,537 SGD
Retailer 9$3,951 SGD
Retailer 7$4,238 SGD
Retailer 8$4,255 SGD
Retailer 2$4,511 SGD
Retailer 3$4,787 SGD
Retailer 4$5,322 SGD
MOH London$7,274 SGD

45 data points across 10 retailers

15 retailers$3,346 SGD to $7,274 SGD

B+
Cheapest Retailer
-
$3,346 SGD
B+
Retailer 2
-
$3,421 SGD
View
B+
Retailer 3
-
$3,441 SGD
View
B+
Retailer 4
-
$3,494 SGD
View
B+
Retailer 5
-
$3,537 SGD
View
B
Retailer 6
-
$3,845 SGD
View
Retailer 7
-
$3,951 SGD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$4,238 SGD
View
B
Retailer 9
-
$4,255 SGD
View
B
Retailer 10
-
$4,291 SGD
View
B
Retailer 11
-
$4,511 SGD
View
B
Retailer 12
-
$4,787 SGD
View
Retailer 13
-
$4,942 SGD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$5,322 SGD
View
Most Expensive
C
MOH London
ABE43FA0F · Nov 4
$7,274 SGD
£4,469 GBP
View
14 more retailers have this diamond
Prices start from $3,346 SGDSave up to $3,928 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+
1.31ct Cushion
$3,346 SGD