CaratHunter
Plans
Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 6555914191

Certificate GIA 6555914191

Diamond specifications and retailer prices

From $2,324 SGD
HK$14,200 HKD
As of October 31, 2026
Save $4,151 SGD (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,475 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555914191. Listed at 23 retailers as of October 30, 2026, with prices from $2,324 to $6,475, a $4,151 spread on the same certified stone. NZ Jewellers lists it at $6,475. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555914191
Dimensions6.88 × 5.09 × 3.45 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
6.88 mm5.09 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555914191
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.6%

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 31
Current: $6,475 SGD|Low: $2,307 SGD|High: $6,475 SGD|Avg: $3,585 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
November 1, 2026
Retailer 16$2,324 SGD
Retailer 15$2,467 SGD
Retailer 12$2,737 SGD
Retailer 10$2,859 SGD
Retailer 6$2,898 SGD
Retailer 2$3,021 SGD
Retailer 18$3,081 SGD
Retailer 4$3,098 SGD
Retailer 11$3,098 SGD
Retailer 8$3,236 SGD
Retailer 5$3,239 SGD
Retailer 3$3,276 SGD
Retailer 14$3,282 SGD
Retailer 9$3,362 SGD
Retailer 7$3,573 SGD
Retailer 17$3,807 SGD
Retailer 19$3,867 SGD
Retailer 13$5,426 SGD
Retailer 20$5,983 SGD
NZ Jewellers$6,475 SGD

21 data points across 20 retailers

23 retailers$2,324 SGD to $6,475 SGD

A
Cheapest Retailer
-
$2,324 SGD
HK$14,200 HKD
A
Retailer 2
-
$2,467 SGD
₹183,790 INR
View
A
Retailer 3
-
$2,737 SGD
View
A
Retailer 4
-
$2,859 SGD
$2,236 USD
View
Final sale: no returns
A
Retailer 5
-
$2,898 SGD
$2,267 USD
View
A
Retailer 6
-
$2,947 SGD
$2,305 USD
View
A
Retailer 7
-
$3,021 SGD
£1,861 GBP
View
A
Retailer 8
-
$3,081 SGD
$2,410 USD
View
A
Retailer 9
-
$3,098 SGD
$2,423 USD
View
A
Retailer 10
-
$3,098 SGD
$2,423 USD
View
A
Retailer 11
-
$3,156 SGD
A$3,798 AUD
View
A
Retailer 12
-
$3,236 SGD
View
A
Retailer 13
-
$3,239 SGD
$2,534 USD
View
A
Retailer 14
-
$3,276 SGD
$2,563 USD
View
A
Retailer 15
-
$3,282 SGD
£2,021 GBP
View
B+
Retailer 16
-
$3,362 SGD
$2,630 USD
View
B+
Retailer 17
-
$3,573 SGD
$2,795 USD
View
B+
Retailer 18
-
$3,807 SGD
ZAR 48,106 ZAR
View
Retailer 19
-
$3,867 SGD
A$4,653 AUD
View
Price last confirmed 24 days ago
B+
Retailer 20
-
$3,867 SGD
€2,881 EUR
View
B
Retailer 21
-
$5,426 SGD
£3,342 GBP
View
B
Retailer 22
-
$5,983 SGD
£3,685 GBP
View
Most Expensive
B
NZ Jewellers
e8b247d8-7354-4635-822f-51e06b3aee4c · Oct 30
$6,475 SGD
$5,065 USD
View
22 more retailers have this diamond
Prices start from $2,324 SGDSave up to $4,151 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
1.00ct Radiant
$2,324 SGD