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Round|Natural|GIA

1.11ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2507294381

Certificate GIA 2507294381

Diamond specifications and retailer prices

From $3,822 SGD
$2,990 USD
As of November 1, 2026
Save $4,582 SGD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,404 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.11ct natural round diamond

This 1.11ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507294381. Listed at 18 retailers as of October 30, 2026, with prices from $3,822 to $8,404, a $4,582 spread on the same certified stone. NZ Jewellers lists it at $8,404. 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

1.11
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2507294381
Dimensions6.63 × 6.60 × 4.11 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Top View
6.63 mm6.60 mm1.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507294381
Side View
Table 56.0%Crown 35°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.1%

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: Nov 1
Current: $8,404 SGD|Low: $3,361 SGD|High: $8,404 SGD|Avg: $5,545 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$3,822 SGD
Retailer 7$4,033 SGD
Retailer 10$4,212 SGD
Retailer 9$4,538 SGD
Retailer 2$5,011 SGD
Retailer 8$5,167 SGD
Retailer 3$5,623 SGD
Retailer 5$5,929 SGD
Retailer 4$8,068 SGD
NZ Jewellers$8,404 SGD

42 data points across 10 retailers

18 retailers$3,822 SGD to $8,404 SGD

B+
Cheapest Retailer
-
$3,822 SGD
$2,990 USD
B+
Retailer 2
-
$3,880 SGD
$3,035 USD
View
B+
Retailer 3
-
$4,033 SGD
$3,155 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,212 SGD
$3,295 USD
View
B+
Retailer 5
-
$4,370 SGD
$3,418 USD
View
B+
Retailer 6
-
$4,370 SGD
$3,418 USD
View
B
Retailer 7
-
$4,538 SGD
$3,550 USD
View
B
Retailer 8
-
$4,947 SGD
$3,870 USD
View
B
Retailer 9
-
$4,947 SGD
$3,870 USD
View
B+
Retailer 10
-
$5,011 SGD
£3,086 GBP
View
B
Retailer 11
-
$5,042 SGD
$3,944 USD
View
B
Retailer 12
-
$5,114 SGD
$4,000 USD
View
Retailer 13
-
$5,167 SGD
A$6,218 AUD
View
Price last confirmed 24 days ago
Retailer 14
-
$5,461 SGD
$4,272 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$5,623 SGD
€4,189 EUR
View
B
Retailer 16
-
$5,929 SGD
ZAR 74,927 ZAR
View
B
Retailer 17
-
$8,068 SGD
£4,969 GBP
View
Most Expensive
B
NZ Jewellers
80fd30a1-3797-46b8-bdf6-ea6d983cbdec · Oct 30
$8,404 SGD
$6,574 USD
View
17 more retailers have this diamond
Prices start from $3,822 SGDSave up to $4,582 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+
1.11ct Round
$3,822 SGD