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Round|Natural|GIA

0.40ct D SI2 Round Natural Diamond

VG • D/SI2 • GIA 6531506709

Certificate GIA 6531506709

Diamond specifications and retailer prices

From $590 NZD
₹31,573 INR
As of October 29, 2026
Save $1,228 NZD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,200 NZD at NZ Jewellers · As of October 10, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6531506709. Listed at 15 retailers as of October 26, 2026, with a 208% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 6531506709
Dimensions4.59 × 4.52 × 2.95 mm
L/W Ratio1.02
Top View
4.59 mm4.52 mm0.40 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531506709
Side View
Table 56.0%Crown 38.5°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 65.2%

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: Oct 29
Current: $962 NZD|Low: $589 NZD|High: $1,985 NZD|Avg: $1,042 NZD|-4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 3$590 NZD
Retailer 2$684 NZD
Retailer 6$719 NZD
Retailer 5$829 NZD
Retailer 7$847 NZD
Retailer 8$915 NZD
Retailer 1$962 NZD
Retailer 4$1,017 NZD
Retailer 10$1,170 NZD
Retailer 9$1,818 NZD

37 data points across 10 retailers

15 retailers$590 NZD to $1,818 NZD

A
Cheapest Retailer
-
$590 NZD
₹31,573 INR
A
Retailer 2
-
$684 NZD
HK$3,000 HKD
View
B+
Retailer 3
-
$719 NZD
$404 USD
View
Final sale: no returns
A
Retailer 4
-
$829 NZD
A$717 AUD
View
Retailer 5
-
$835 NZD
$469 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$847 NZD
SGD 643 SGD
View
Retailer 7
-
$864 NZD
$485 USD
View
Price last confirmed 14 days ago
Retailer 8
-
$864 NZD
$485 USD
View
Price last confirmed 14 days ago
A
Retailer 9
-
$915 NZD
$514 USD
View
Retailer 10
-
$926 NZD
$520 USD
View
Price last confirmed 14 days ago
A
Retailer 11
-
$962 NZD
£425 GBP
View
A
Retailer 12
-
$1,017 NZD
$571 USD
View
B+
Retailer 13
-
$1,170 NZD
€626 EUR
View
B
Retailer 14
-
$1,818 NZD
£804 GBP
View
Most Expensive
NZ Jewellers
f81f937b-3614-48a9-a3d3-ecc1f4df1ab9 · Oct 10
$3,200 NZD
$1,797 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from $590 NZDSave up to $1,228 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
0.40ct Round
$590 NZD