CaratHunter
Plans
Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2566059521

Certificate GIA 2566059521

Diamond specifications and retailer prices

From $4,074 SGD
As of November 5, 2026
Save $5,238 SGD (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $9,312 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566059521. Listed at 24 retailers as of November 5, 2026, with prices from $4,074 to $9,312, a $5,238 spread on the same certified stone. NZ Jewellers lists it at $9,312. 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

1.30
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2566059521
Dimensions6.92 × 6.94 × 4.34 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Pinpoint
Top View
6.92 mm6.94 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566059521
Side View
Table 59.0%Crown 34°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 62.5%

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: Nov 5
Current: $9,312 SGD|Low: $4,052 SGD|High: $9,312 SGD|Avg: $5,882 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
Retailer 22
Retailer 23
Retailer 24
November 6, 2026
Retailer 23$4,074 SGD
Retailer 6$4,116 SGD
Retailer 19$4,296 SGD
Retailer 5$4,537 SGD
Retailer 16$4,702 SGD
Retailer 10$4,893 SGD
Retailer 7$5,082 SGD
Retailer 20$5,115 SGD
Retailer 15$5,197 SGD
Retailer 9$5,344 SGD
Retailer 11$5,344 SGD
Retailer 3$5,383 SGD
Retailer 8$5,534 SGD
Retailer 2$5,602 SGD
Retailer 12$5,661 SGD
Retailer 24$5,826 SGD
Retailer 22$6,086 SGD
Retailer 14$6,167 SGD
Retailer 17$6,470 SGD
Retailer 21$6,523 SGD
Retailer 13$8,121 SGD
Retailer 18$8,350 SGD
Retailer 4$8,914 SGD
NZ Jewellers$9,312 SGD

20 data points across 24 retailers

24 retailers$4,074 SGD to $9,312 SGD

A
Cheapest Retailer
-
$4,074 SGD
A
Retailer 2
-
$4,116 SGD
View
A
Retailer 3
-
$4,296 SGD
View
A
Retailer 4
-
$4,537 SGD
View
A
Retailer 5
-
$4,702 SGD
View
A
Retailer 6
-
$4,893 SGD
View
B+
Retailer 7
-
$5,082 SGD
View
B+
Retailer 8
-
$5,115 SGD
View
B+
Retailer 9
-
$5,197 SGD
View
B+
Retailer 10
-
$5,344 SGD
View
Retailer 11
-
$5,344 SGD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$5,383 SGD
View
B+
Retailer 13
-
$5,534 SGD
View
B+
Retailer 14
-
$5,602 SGD
View
B+
Retailer 15
-
$5,661 SGD
View
B+
Retailer 16
-
$5,826 SGD
View
Retailer 17
-
$6,066 SGD
View
Price last confirmed 28 days ago
B+
Retailer 18
-
$6,086 SGD
View
B
Retailer 19
-
$6,167 SGD
View
B+
Retailer 20
-
$6,523 SGD
View
B
Retailer 21
-
$8,121 SGD
View
B
Retailer 22
-
$8,350 SGD
View
B
Retailer 23
-
$8,914 SGD
View
Most Expensive
B
NZ Jewellers
e1485e1c-57db-4148-8f5a-2c5d60bd4497 · Nov 5
$9,312 SGD
$7,266 USD
View
23 more retailers have this diamond
Prices start from $4,074 SGDSave up to $5,238 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
1.30ct Round
$4,074 SGD