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Marquise|Natural|GIA

0.40ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 6321443750

Certificate GIA 6321443750

Diamond specifications and retailer prices

From $637 NZD
HK$2,800 HKD
As of November 1, 2026
Save $1,121 NZD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,758 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6321443750. Listed at 16 retailers as of November 1, 2026, with prices from $637 to $1,758, a $1,121 spread on the same certified stone. MOH London lists it at $1,758. 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

0.40
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6321443750
Dimensions6.53 × 3.83 × 2.70 mm
L/W Ratio1.70
Top View
6.53 mm3.83 mm0.40 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6321443750
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 70.5%

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 1
Current: $1,758 NZD|Low: $637 NZD|High: $2,917 NZD|Avg: $1,127 NZD|-0.9%
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
November 2, 2026
Retailer 6$637 NZD
Retailer 5$675 NZD
Retailer 14$761 NZD
Retailer 12$819 NZD
Retailer 13$819 NZD
Retailer 7$834 NZD
Retailer 16$878 NZD
Retailer 9$944 NZD
Retailer 8$994 NZD
Retailer 3$1,031 NZD
Retailer 4$1,137 NZD
Retailer 10$1,159 NZD
Retailer 11$1,180 NZD
Retailer 2$1,540 NZD
MOH London$1,758 NZD
Retailer 15$2,917 NZD

26 data points across 16 retailers

16 retailers$637 NZD to $1,758 NZD

B+
Cheapest Retailer
-
$637 NZD
HK$2,800 HKD
B+
Retailer 2
-
$675 NZD
$380 USD
View
B
Retailer 3
-
$761 NZD
$428 USD
View
B
Retailer 4
-
$797 NZD
SGD 606 SGD
View
B
Retailer 5
-
$819 NZD
$461 USD
View
B
Retailer 6
-
$819 NZD
$461 USD
View
B
Retailer 7
-
$878 NZD
$494 USD
View
B
Retailer 8
-
$944 NZD
£418 GBP
View
B
Retailer 9
-
$994 NZD
$559 USD
View
B
Retailer 10
-
$1,031 NZD
$580 USD
View
C
Retailer 11
-
$1,137 NZD
$640 USD
View
C
Retailer 12
-
$1,159 NZD
€621 EUR
View
C
Retailer 13
-
$1,180 NZD
ZAR 10,725 ZAR
View
C
Retailer 14
-
$1,540 NZD
£682 GBP
View
Most Expensive
C
MOH London
86C62FB86 · Nov 2
$1,758 NZD
£779 GBP
View
14 more retailers have this diamond
Prices start from $637 NZDSave up to $1,121 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.

B+
0.40ct Marquise
$637 NZD