Round|Natural|GIA

1.02ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2564016528

Certificate GIA 2564016528

Diamond specifications and retailer prices

From $3,896 SGD
A$4,688 AUD
As of October 29, 2026
Save $3,959 SGD (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,140 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564016528. Listed at 22 retailers as of October 29, 2026, with a 102% 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

1.02
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2564016528
Dimensions6.39 × 6.43 × 4.04 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.39 mm6.43 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2564016528
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.0%

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: $4,999 SGD|Low: $3,375 SGD|High: $7,907 SGD|Avg: $5,027 SGD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 8$4,147 SGD
Retailer 2$4,183 SGD
Retailer 7$4,436 SGD
Retailer 9$4,673 SGD
Retailer 3$4,853 SGD
Retailer 1$4,999 SGD
Retailer 6$5,004 SGD
Retailer 5$5,689 SGD
Retailer 4$7,855 SGD

42 data points across 9 retailers

22 retailers$3,896 SGD to $7,855 SGD

A
Cheapest Retailer
-
$3,896 SGD
A$4,688 AUD
B+
Retailer 2
-
$4,147 SGD
$3,244 USD
View
B+
Retailer 3
-
$4,183 SGD
$3,272 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,436 SGD
A$5,338 AUD
View
B+
Retailer 5
-
$4,487 SGD
$3,510 USD
View
Retailer 6
-
$4,673 SGD
$3,655 USD
View
Price last confirmed 53 days ago
Retailer 7
-
$4,673 SGD
$3,655 USD
View
Price last confirmed 43 days ago
Retailer 8
-
$4,673 SGD
$3,655 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$4,673 SGD
$3,655 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$4,852 SGD
$3,795 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
$4,853 SGD
£2,989 GBP
View
B+
Retailer 12
-
$4,858 SGD
$3,800 USD
View
B+
Retailer 13
-
$4,999 SGD
€3,724 EUR
View
Retailer 14
-
$5,004 SGD
A$6,023 AUD
View
Price last confirmed 22 days ago
Retailer 15
-
$5,391 SGD
$4,217 USD
View
Price last confirmed 54 days ago
Retailer 16
-
$5,391 SGD
$4,217 USD
View
Price last confirmed 43 days ago
Retailer 17
-
$5,391 SGD
$4,217 USD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
$5,689 SGD
ZAR 71,893 ZAR
View
B
Retailer 19
-
$7,855 SGD
£4,838 GBP
View
Retailer 20
-
$8,140 SGD
$6,367 USD
View
Price last confirmed 43 days ago
Retailer 21
-
$8,140 SGD
$6,367 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
fd0aff89-c771-45ef-8c4c-eca964b0d79d · Sep 28
$8,140 SGD
$6,367 USD
View
Price last confirmed 33 days ago
21 more retailers have this diamond
Prices start from $3,896 SGDSave up to $3,959 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.

A
1.02ct Round
$3,896 SGD