CaratHunter
Plans
Cushion|Natural|GIA

1.86ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6432934893

Shape and cutting style on the report: Cushion modified brilliant

Certificate GIA 6432934893

Diamond specifications and retailer prices

From $4,387 NZD
As of November 6, 2026
Save $5,542 NZD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,929 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.86ct natural cushion diamond

This 1.86ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6432934893. Listed at 13 retailers as of November 4, 2026, with prices from $4,387 to $9,929, a $5,542 spread on the same certified stone. MOH London lists it at $9,929. 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

1.86
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6432934893
Dimensions7.33 × 6.57 × 4.55 mm
L/W Ratio1.12
Top View
7.33 mm6.57 mm1.86 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6432934893
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,929 NZD|Low: $4,340 NZD|High: $10,076 NZD|Avg: $6,363 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$4,387 NZD
Retailer 7$5,118 NZD
Retailer 11$5,605 NZD
Retailer 9$5,677 NZD
Retailer 5$5,731 NZD
Retailer 3$5,877 NZD
Retailer 10$5,953 NZD
Retailer 4$6,095 NZD
Retailer 2$6,929 NZD
Retailer 6$7,266 NZD
MOH London$9,929 NZD

42 data points across 11 retailers

13 retailers$4,387 NZD to $9,929 NZD

A
Cheapest Retailer
-
$4,387 NZD
A
Retailer 2
-
$5,118 NZD
View
A
Retailer 3
-
$5,285 NZD
View
A
Retailer 4
-
$5,605 NZD
View
A
Retailer 5
-
$5,677 NZD
View
A
Retailer 6
-
$5,731 NZD
View
A
Retailer 7
-
$5,774 NZD
View
Retailer 8
-
$5,953 NZD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$6,095 NZD
View
A
Retailer 10
-
$6,929 NZD
View
B+
Retailer 11
-
$7,266 NZD
View
B+
Retailer 12
-
$8,428 NZD
View
Most Expensive
B
MOH London
7AB8E7FDB · Nov 4
$9,929 NZD
£4,334 GBP
View
12 more retailers have this diamond
Prices start from $4,387 NZDSave up to $5,542 NZD

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
1.86ct Cushion
$4,387 NZD