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Round|Natural|GIA

1.02ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6531774754

Certificate GIA 6531774754

Diamond specifications and retailer prices

From $3,289 SGD
HK$20,100 HKD
As of October 29, 2026
Save $4,356 SGD (57%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,377 SGD at NZ Jewellers · As of September 19, 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 6531774754. Listed at 25 retailers as of October 29, 2026, with a 132% 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 angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531774754
Dimensions6.38 × 6.41 × 4.04 mm
L/W Ratio1.00
Top View
6.38 mm6.41 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6531774754
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.2%

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: $7,645 SGD|Low: $3,289 SGD|High: $7,813 SGD|Avg: $4,666 SGD
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 5$3,289 SGD
Retailer 13$3,436 SGD
Retailer 9$3,560 SGD
Retailer 18$3,560 SGD
Retailer 11$3,611 SGD
Retailer 10$3,670 SGD
Retailer 8$3,976 SGD
Retailer 6$4,128 SGD
Retailer 15$4,235 SGD
Retailer 19$4,334 SGD
Retailer 21$4,334 SGD
Retailer 17$4,474 SGD
Retailer 16$4,558 SGD
Retailer 12$4,587 SGD
Retailer 2$4,836 SGD
Retailer 14$4,945 SGD
Retailer 4$4,973 SGD
Retailer 7$5,208 SGD
Retailer 20$5,344 SGD
Retailer 3$7,348 SGD
NZ Jewellers$7,645 SGD

23 data points across 21 retailers

25 retailers$3,289 SGD to $7,645 SGD

A
Cheapest Retailer
-
$3,289 SGD
HK$20,100 HKD
A
Retailer 2
-
$3,436 SGD
$2,688 USD
View
A
Retailer 3
-
$3,560 SGD
$2,785 USD
View
A
Retailer 4
-
$3,560 SGD
$2,785 USD
View
A
Retailer 5
-
$3,611 SGD
$2,825 USD
View
A
Retailer 6
-
$3,667 SGD
A$4,413 AUD
View
A
Retailer 7
-
$3,670 SGD
$2,871 USD
View
Final sale: no returns
A
Retailer 8
-
$3,976 SGD
$3,110 USD
View
A
Retailer 9
-
$4,128 SGD
$3,229 USD
View
A
Retailer 10
-
$4,235 SGD
£2,608 GBP
View
B+
Retailer 11
-
$4,334 SGD
$3,390 USD
View
B+
Retailer 12
-
$4,334 SGD
$3,390 USD
View
B+
Retailer 13
-
$4,474 SGD
$3,500 USD
View
Retailer 14
-
$4,527 SGD
$3,541 USD
View
Price last confirmed 43 days ago
B+
Retailer 15
-
$4,558 SGD
£2,807 GBP
View
B+
Retailer 16
-
$4,587 SGD
$3,588 USD
View
B+
Retailer 17
-
$4,836 SGD
€3,603 EUR
View
Retailer 18
-
$4,945 SGD
A$5,951 AUD
View
Price last confirmed 22 days ago
Retailer 19
-
$4,973 SGD
$3,890 USD
View
Price last confirmed 7 days ago
Retailer 20
-
$5,027 SGD
$3,932 USD
View
Price last confirmed 39 days ago
B+
Retailer 21
-
$5,208 SGD
$4,074 USD
View
B+
Retailer 22
-
$5,344 SGD
ZAR 67,526 ZAR
View
B
Retailer 23
-
$7,348 SGD
£4,526 GBP
View
B
Retailer 24
-
$7,645 SGD
$5,980 USD
View
Most Expensive
NZ Jewellers
de278a56-2361-45d9-a9ac-6d825ab6d4ca · Sep 19
$8,377 SGD
$6,553 USD
View
Price last confirmed 41 days ago
24 more retailers have this diamond
Prices start from $3,289 SGDSave up to $4,356 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
$3,289 SGD