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Round|Natural|GIA

0.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1518541183

Certificate GIA 1518541183

Diamond specifications and retailer prices

From $972 SGD
$758 USD
As of October 29, 2026
Save $1,001 SGD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,361 SGD at NZ Jewellers · As of October 30, 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 top-tier cut grade and certified by GIA 1518541183. Listed at 18 retailers as of October 29, 2026, with a 103% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.40
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1518541183
Dimensions4.77 × 4.73 × 2.88 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
4.77 mm4.73 mm0.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518541183
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.6%

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: Oct 29
Current: $3,361 SGD|Low: $948 SGD|High: $3,361 SGD|Avg: $1,437 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5$948 SGD
Retailer 10$954 SGD
Retailer 7$972 SGD
Retailer 9$972 SGD
Retailer 6$1,009 SGD
Retailer 8$1,120 SGD
Retailer 2$1,284 SGD
Retailer 3$1,397 SGD
Retailer 4$1,973 SGD
NZ Jewellers$3,361 SGD

43 data points across 10 retailers

18 retailers$972 SGD to $1,973 SGD

Retailer 1
-
$948 SGD
$740 USD
Price last confirmed 9 days ago
Retailer 2
-
$954 SGD
$744 USD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
$972 SGD
$758 USD
View
B+
Retailer 4
-
$972 SGD
$758 USD
View
B+
Retailer 5
-
$979 SGD
$764 USD
View
B+
Retailer 6
-
$991 SGD
A$1,189 AUD
View
B+
Retailer 7
-
$1,009 SGD
$787 USD
View
B+
Retailer 8
-
$1,120 SGD
$874 USD
View
B
Retailer 9
-
$1,192 SGD
$930 USD
View
B
Retailer 10
-
$1,192 SGD
$930 USD
View
B
Retailer 11
-
$1,230 SGD
$960 USD
View
B
Retailer 12
-
$1,284 SGD
£789 GBP
View
B
Retailer 13
-
$1,369 SGD
$1,068 USD
View
B
Retailer 14
-
$1,397 SGD
€1,038 EUR
View
B
Retailer 15
-
$1,436 SGD
£882 GBP
View
B
Retailer 16
-
$1,725 SGD
CA$1,869 CAD
View
B
Retailer 17
-
$1,973 SGD
£1,212 GBP
View
Most Expensive
NZ Jewellers
1a3c0a3a-44e4-4f87-a291-68ad92ac507e · Oct 30
$3,361 SGD
$2,622 USD
View
Price under review
17 more retailers have this diamond
Prices start from $972 SGDSave up to $1,001 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+
0.40ct Round
$972 SGD